Breakfast Baked Eggs in Half Pint Jars

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Two or three times a year, Scott and I come to the slow realization that our eating habits need a bit of a reset. I’m sure many of you know how this is. You go from making oatmeal for breakfast each morning to picking up a bagel and cream cheese around the corner from work. The meals that include heaping portions of green vegetables become fewer. And ice cream goes from a once-in-a-while treat to a grocery list staple.

custard cups

One of the best ways I’ve found for me to restore some reason to my eating habits is to spend a week or two actively increasing my greens and proteins and avoiding sweets, treats and anything made with flour. For those of you who like to put labels on such things, I guess you could call it a modified low carb diet.

cups/jars with sauteed vegetables

As we all know, eating better takes a little bit of planning, particularly when you’ve fallen into a habit of the morning bagel from the neighborhood deli. For me to get out of that rut, I have to make something tasty that I can easily take to work with me and will keep me satiated for a few hours. And that is where these cute little egg cups come in.

unbaked egg cups

I’ve been making these in various forms for years now (as this two year old Slashfood post attests). I used to make them in a six-cup muffin tin, but recent realized that I should apply the bake-in-jars trend to this savory breakfast item. It means I don’t have to transfer them to another container after baking and instead can just screw on a lid once they’ve cooled down. And you all know I how much I love to eat my breakfast from a jar.

baked egg cups

Unfortunately, several of my wide mouth half pint jars were recently pressed into canning duty, so I didn’t have quite enough to go around and had to employ some vintage Fire King custard cups to serve as well (I have an embarrassing number of these as I can’t resist them when I find them for $.25 at thrift stores). Still, you get the idea.

A word to the wise here. If you decide to follow my example and bake eggs in jars or glass, please make sure to give your vessels a good greasing. I was in a hurry when I made these (it was past 11 pm on a Sunday night) and took the cheater’s way in the form of the Trader Joe’s version of Pam. However, when I have a bit more time to play with, I grease the cups with butter.

And a final note. The recipe below calls for onion and asparagus. That’s because that what’s in season right now. During the summer, I use spinach or shredded zucchini. Kale or chard is good. I’ve even used leftover brussels sprouts in these. It’s all good and it all works. Use your imagination and pick out a couple of vegetables that taste good to you.

On reheating: When it comes time to eat these, I do one of two things. I either pop them into the microwave for a minute or I eat them after they’ve sat at room temperature for 15-20 minutes, until they’ve lost their refrigerator chill. You can reheat them right in the jars. If you want to reheat them in the oven or toaster oven, I’d recommend starting them in a cold oven so as not to shock the glass.

Oven Baked Egg and Vegetable Cups

Yield: Makes 6-7, depending on the size of your baking vessels


  • 2 teaspoons olive oil
  • 1/2 large onion
  • 1 bundle of asparagus
  • 10 eggs, beaten
  • 3/4 cup grated cheese (I often use this opportunity to finish off any odds and ends)
  • salt and pepper.


  1. Preheat oven to 375 degrees.
  2. Cut onion into thin half moons. Wash asparagus well (I’ve found that it’s been really gritty lately), trim the ends and cut into chunks of about 1/2 to 3/4 an inch.
  3. Heat oil in a large skillet and add onions. Cook until brown. Add asparagus and cook until tender crisp (about five minutes). Season with salt and pepper and set aside.
  4. Grease cups/jars. Using tongs, portion out the sauteed vegetables. The cups/jars should be mostly filled with vegetables.
  5. Beat eggs and evenly divide between the baking cups/jars. Top with approximately 1 tablespoon of cheese per serving. Using a fork or spoon, carefully stir the contents of each cup/jar so that the cheese isn’t just resting on top.
  6. Place the cups/jars on a baking sheet and bake for 20-25 minutes. When tops are browned, they are done.
  7. Remove from oven and let cool. If you used jars, you can put the lids on once they are cool enough to touch (the tops will be puffy and high just after baking, but like a souffle, they will fall). Store egg cups in the refrigerator until ready to eat. They will keep up to five days.


IMPORTANT: This is not a canning recipe. I use jars simply as a convenient baking/transportation vessel. They must be refrigerated once cool. Please do not think that if you put the lids on when the jars are hot that the resulting seal will mean they are shelf stable. Seriously.

Final note: If you want to simplify things, you can actually bake egg items like this right in the pan where you sauteed the vegetables (provided that it is oven safe). I use a stainless steel or cast iron skillet and make crustless quiche/frittata as easy brunch/potluck dishes quite frequently.

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90 Responses to Breakfast Baked Eggs in Half Pint Jars

  1. 1
    kaela says:

    Ooooh, they are like mini frittatas in jars! (well, sans potato. But, I’m Irish. You know I would add potato.)


    • 1.1
      Marisa says:

      Kaela, I think potato would be an excellent addition. That’s one of things I like about “recipes” like this one. It’s pretty darn flexible.

  2. 2
    kaela says:

    p.s. Loving the new header…

  3. 3
    Wendy says:

    These look fantastic! I’ll be making some of these this week, I think.

  4. 4
    Karen says:

    Great idea! We eat a ton of eggs and greens or whatever other veggie is abundant in the garden. I’m going to make a batch of these this weekend for lunches. My diet could use a little rework too πŸ™‚

  5. 5

    I just picked up about 150 canning jars for free today and then spotted your site. I think I might need to become a regular!

  6. 6
    lani says:

    What a great idea and so handy to give to hubby to take to work..thanxxx yet again…

  7. 7
    meg says:

    Great idea! I love a portable breakfast and have an abundance of eggs =) Love the new header- looks fantastic!

  8. 8
    dahlila says:

    These look great!

    Question: to reheat them for the next day, do you microwave them or warm them in oven? Wondering how nuked eggs would taste? Not sure.

    thank you, dahlila xo

    • 8.1
      Marisa says:

      I’ve added a note up above about reheating. Basically, I just microwave them for a minute or eat them at room temp.

  9. 9
    Kathy says:

    These sounds wonderful, but I am curious to know if you warm them or eat them cold from the refrigerator. I am unsure about cold eggs. Do they turn rubbery when you reheat them?

  10. 10
    Rebecita says:

    Oh, this is amazing. I’m totally in one of those food ruts. (New job, we spend a lot of time bonding over frozen meals. Yeah.) And I have approximately 2.5 dozen eggs too many at the moment. Thank you for saving my breakfast.

  11. 11
    Jess says:

    This looks amazing and quite similar to meals we partake in around these parts. Yet – I have never thought of cooking them in jars! Genius!

  12. 12
    esp says:

    Oh…we just yesterday vowed to start eating more veggies and protein. This is perfect!

    Love the new header, too.

  13. 13
  14. 14
    Anne B. says:

    Assuming you reheat them before eating, do you have any tips for microwave timing?

    • 14.1

      I was wondering the same on the reheating πŸ™‚

      • Mel says:

        Me too! I have an hour commute to work, so I’d want to warm it up once in the office. Can you reheat in the jar?

        • Marisa says:

          I reheat them for just 1 minute. I find that it’s enough to heat them through without turning them hard or crusty. Do make sure to take the lid off before heating in a microwave, though (I realize that’s obvious to most, but just in case).

  15. 15
    Jenny says:

    This is a great idea! How long do these last in the refrigerator? a week?

  16. 16
    Holly says:

    Have you tried freezing these? Just wondering how they would hold up.

    • 16.1
      Marisa says:

      I haven’t tried freezing them. However, egg dishes like this tend to freeze well, so I imagine they’d be okay.

      • momchelle says:

        they freeze SO well….just set the jar in the fridge the night before and nuke for a minute in the morning!

  17. 17
    Michelle says:

    What a brilliant healthy breakfast/lunch to go. You rock!

  18. 18
    Krystyna says:

    May be a dumb question but what do you use to cover the custard cups?

  19. 19

    Terrific idea, breakfast is often rushed around here. Hey, I like your new heading, that is a new heading isn’t it? Sometimes I’m not sure if I remember correctly, but I think you had a photo of your kitchen before.


    • 19.1
      Marisa says:

      Yes, that is a new header image! A friend made that logo for me a while back and I decided I wanted to better use it on the site.

  20. 20
    Dmarie says:

    absolutely fabulous idea!!

  21. 21
    Daedre says:

    I have those same custard cups! I inherited a set of that translucent white bakeware from my grandmother. Who knows how old they are! I think they’re prefect for portioning out snacks or holding seeds while planting.

  22. 22
    Carolyn says:

    We eat frittatas galore around here, but I’d never thought to make them portable like this. It would make a great school lunch, too. How appealing to make one batch and have the kid’s lunch made for the whole week! Thanks for the idea.

  23. 23
    M says:

    Love it! Though it might be silly to make them in jars to walk around the corner from the kitchen to my office nook. πŸ™‚

    Sometime soon, I think you should offer up a “how to cook in jars” primer. I’ve been seeing a lot of it lately, but get nervous about which jars are okay to use, what temperatures they go to, how to pick jars (none I have other than the canning ones have any heating notes, yet I see the same style used in baking). What to look out for, etc.

  24. 24
    gina says:

    What a cute and practical idea- I love it! I’m thinking we could get our 6 year old to eat his eggs if he had a jar of them.

  25. 25

    I love this! What a great idea for a picnic. Your new header looks terrific, too, btw.

  26. 26
    CATT says:

    What a fun idea. I as well have my fireking cups and love them…I also watch for them at thrift stores…my little secret.

  27. 27

    […] talk about other food things, or jar things, and that's why I'm probably going to do some kind of crazy jar-based breakfast bake thing at some […]

  28. 28
    Ailis says:

    Had to laugh, as I had this very thought on the way home from work today, while plotting to make some small quiche for the weekend. No new ideas under the sun…

  29. 29
    Melanie says:

    This is epic – and perfect timing! Such a simple, brilliant idea. We are in “need to reset” mode right now as we just (ok, at the beginning of April…) moved and nothing has been normal. I’ve been working hard to get us back to lots of greens and fruit at lunch and dinner, but breakfast has been a challenge. This is the perfect solution! I shall employ next Monday in advance of the busy week πŸ™‚ Thank you!

  30. 30
    Melissa Frances says:

    OMG…I love this idea….perfect quick breakfast!!

    thanks for a great ideal…i love food in jars!!!

    Melissa from Naches, WA

  31. 31
    Julia says:

    I bookmarked this before I even read it. Yes, please and thank you! You are a total. pro.

  32. 32
    Celia says:

    I LOVE this idea!

  33. 33
    Julianne says:

    WICKED! So cute in the jars. I cannot wait to try this. The small jars are also freezer safe!

    Your new header is excellent, btw.

  34. 34
    TessaDiane says:

    Oh, I am SO doing this. I actually just found two half pint jars at the thrift store today!

  35. 35
    Evalyn says:

    This would be a good use for those half-pints that have acquired chips and will no longer seal. As long as you eat with a spoon, of course, and don’t lick the inside of the jar to finish! (Who? Me? That was lemon curd!)

  36. 36
    Pip says:

    What a great idea! I think I might make some of these this weekend for a quick at work breakfast. Thanks for thie inspiration

  37. 37
    Kimberley says:

    I am ashamed to admit that I don’t own any half pint jars! I love egg anything for breakfast. This is such a winning idea. (You never quit with those!)

  38. 38
    momchelle says:

    I made a bunch like this for my mom. She’s getting older and didn’t always bother to cook for herself. I made them from a breakfast casserole recipe that she loves and baked them in jars. I then popped them in the freezer- she set one in the fridge before bed, then nuked it for a minute the next morning (and put a bit more cheese on top to make it look nice). She had a nice home-cooked breakfast with very little work on her part!

  39. 39
    Molly Odell says:

    Cool idea! I LOVE eating left over quiche and it certainly would be handy to have it in little resealable jars ready to go!

  40. 40
    Angel says:

    I made these this weekend for my husband and I to eat for breakfast during the week. I did add some chicken sausage from our local chicken farm and used different vegetables. Just had my first one this morning…AMAZING! Perfect to grab and go.

  41. 41
    Stephanie says:

    Wow, what an ingenious twist on the frittata, which I already love for its ability to make odds and ends seem like a planned meal. I will definitely be doing this for quick breakfasts.

  42. 42

    This was great. I made them the night before a hike, and then tucked them inside an insulated lunch bag. After a few hours of hiking, we thoroughly enjoyed them. Way better than the pb&j with tomato soup I usually bring.

  43. 43
    Moonwaves says:

    Wow. I actually have the same problem but every time I fall back into old habits it seems to get harder and harder to pull out of it again (living two doors down from one of the best bakeries in town doesn’t help). These look amazing and also like a potentially good way to use up veg from the day before or preparing the veg on Sunday evening and then spending five minutes on Monday morning getting them into the oven to bake while you get ready for work – hot breakfast on Monday and enough left for the rest of the week too. Can’t wait to try these out!

  44. 44
    Kristina says:

    I should be starting dinner her making one of my husband favorite meals – fried chicken strips with captain crunch & corn flakes). But, I am enjoying putting it off & reading the things from you blog right now. Anyway, what a great idea. I wonder if you could use those small jars for creme brulee (sp???) It’s been a while since I’ve or actually my husband has made them but, might try one day. Gives us an excuse to have some adults over to our house.

  45. 45
    hena says:

    Oh my I’m salivating.

  46. 46
    susan says:

    Ohhhh, damn, you’re so smart.

  47. 47

    […] you checked out the Food in Jars blog?Β  It’s really awesome!Β  Inspired by a recipe there, (and I would suggest you read the recipe there, because I like to over simply things) I whipped up […]

  48. 48
  49. 49
    Sherry says:

    After you cool and put the lid on – can you freeze these? Thanks.

    • 49.1
      Sherry says:

      Ooops…never mind I didn’t realize someone already asked that. Thanks! Cool site! pointed me over here.

  50. 50
    Meeling says:

    Great post and what a fab idea…must try these!

    Popping over from link on Cubits! πŸ™‚


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