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Home » School Lunches HQ » Bento Boxes

Cheesy Spinach Egg Cups

By Laura Fuentes Updated Jul 18, 2024

5 from 12 votes

Recipe

This post may contain affiliate links. Read our disclosure policy here.

These cheesy spinach egg cups make a terrific high-protein lunch for school.

Learn how to pack them hot or at room temperature in a lunch box with the tips in the post.

Spinach egg bites in a lunch container with diced peaches, blueberries, and trail mix.

Cheesy Spinach Egg Bites

Cheesy egg bites are a kid-favorite lunch option that’s easy to make with eggs, milk, cheese, and your choice of add-ins. This recipe uses chopped spinach and shredded mozzarella cheese- a perfect way to add more greens to your kid’s day!

The bite-size and the cheesy flavor make these egg cups the perfect vessel to sneak green veggies into the lunchbox with no picky eater complaining about it! Plus, it’s a healthy meal that comes together quick and easy. A win!

To make this recipe ahead, bake the egg cups and refrigerate them in an airtight container for up to 3 days. You can enjoy them cold, at room temperature, or heat them up to pack them warm in a thermos.

Spinach Egg Bites Ingredients

Open the fridge and there you will find the four simple ingredients needed to make these nutritious Spinach Egg Cups. Check out the list:

  • Eggs: add protein and help to bind the other ingredients.
  • Milk: your favorite dairy or non-dairy milk.
  • Spinach: chopped to add tons of nutrition!
  • Shredded cheese: your favorite! Mozzarella, Colby Jack, Mexican cheese blend, pepper Jack, Swiss, or any variety of Cheddar.

Healthy lunches the kids will love don’t require fancy ingredients, just the right ideas, and I’ve got a ton of them right here: 

Stop Wondering What to Pack.

Pack lunches your kids will actually eat with 101 lunch ideas, practical packing tips, a complete Thermos Lunch Guide, and my Pack Meals Like a Pro bonus.

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How to Make Spinach Egg Cups

What can be any easier than combining four ingredients and pouring the mix into a muffin pan? That’s how simple it is to make these epic Spinach Egg Cups! Check the step-by-step:

  1. Prep
    Preheat the oven to 350F and grease a 24-count mini muffin pan.
  2. Mix the ingredients
    In a large bowl, whisk the eggs and milk. Add in the chopped spinach and shredded cheese. Mix to combine all ingredients.
  3. Fill the muffin pan
    Distribute the egg mixture evenly into the muffin pan cups, filling them about ¾ of the way up.
  4. Bake
    Bake in the preheated oven for 15-18 minutes. Using a regular-sized muffin tray (yields 12) requires a longer baking time of approximately 26 to 28 minutes.
  5. Remove
    Remove the pan from the oven and let them cool in the pan before carefully removing them with a small knife or small spatula.
  6. Refrigerate
    Once cooled, refrigerate the egg cups in an airtight container or zip bag for up to 3 days.

Should Egg Cups be Eaten Warm, Cold or at Room Temperature?

There’s no right or wrong temperature to enjoy egg cups. They can be eaten cold straight out of the fridge, at room temperature when packed in a lunch container, or warm from a thermos. 

How to Pack Egg Cups in a Thermos

To enjoy these Spinach Egg Cups warm at lunch, they’ll need to be heated up and placed inside a thermos container. While they won’t be as hot as out of the oven or microwave, they’ll remain warm.

How to Store Spinach Egg Bites

Once the spinach egg bites are out of the oven and have cooled down to room temperature, remove them from the mini muffin tray and transfer them inside an airtight container or zip bag. Refrigerate for up to 3 days.

How Long Can These Keep in the Fridge?

Egg cups are the perfect lunch builder ingredient you can make ahead of time. They keep in the fridge for 3 days.

How to Pack Spinach Egg Cups for Lunch 

If you’d like to keep the spinach egg cups warm, pack them in a thermos container, but if your kids don’t mind them at room temp, you can pack them in a regular lunch container. I’ll show you how to do both below: 

  1. To enjoy these at room temperature, place 4 to 6 egg cups inside the main compartment of a lunch container.
  2. To eat warm, heat the egg cups in the microwave for 1 minute, stopping the microwave halfway through to flip them over. Immediately transfer them inside a thermos container and close the lid.
  3. Finish packing this lunch by adding fruit, veggies, and any other sides inside a bento box. Pack everything inside a lunch bag.

Looking for a durable thermos container that will keep food hot for hours? Check out my favorite options here.

Tips for Packing Egg Cups for Lunch Like a Pro

Build balanced meals that stay intact until lunchtime with these pro tips:

Make it a meal
To turn these spinach egg cups into a balanced lunch, pack 4 egg cups for smaller kids and 6 for larger appetites, along with fruit, veggies, and something crunchy, like trail mix, cheese crackers, or pita chips.

Separate dry from wet ingredients
You don’t want crunchy snacks to absorb egg cups’ humidity! To prevent this, pack ingredients in separate compartments.

Cook once, eat twice (or more!)
Egg cups are terrific for meal prep! Make them ahead and store them in the fridge for up to 3 days. Use them to build high-protein school lunches, enjoy breakfast on the go, or even eat as a healthy snack!

More Egg Cup Lunch Ideas

You can make egg cups of all kinds by mixing and matching different ingredients like veggies, lunch meat, and leftover odds and ends from dinner.

With this recipe and the ones below, you won’t get tired of these baked egg bites anytime soon:

  • Pizza Egg Cups
  • Spinach & Bacon Egg Cups
  • Salsa Egg Bites

You can also watch how a couple of these recipes are made in this quick video:

Spinach Egg Cups for School

Servings: 4 (24 egg cups)
Prep Time: 5 minutes mins
Cook Time: 18 minutes mins
Total Time: 23 minutes mins
These cheesy spinach egg cups make a terrific high-protein lunch for school.
5 from 12 votes
Print Pin

Ingredients

For the egg cups:

  • 6 eggs
  • 3 tablespoons milk
  • ½ cup chopped spinach
  • 1 cup shredded cheese

For each lunch:

  • 4-6 egg cups
  • Fruit & veggies
  • Lunch sides

Instructions

For the egg cups:

  • Preheat the oven to 350F and grease a 24-count mini muffin pan. See the note below regarding cooking time if using a regular muffin pan.
  • In a large bowl, whisk the eggs and milk. Add in the chopped spinach and shredded cheese. Mix to combine all ingredients.
  • Distribute the egg mixture evenly into the muffin pan cups, filling them about ¾ of the way up.
  • Bake in the preheated oven for 15-18 minutes. Remove the pan from the oven and let them cool in the pan before carefully removing them with a small knife or small spatula.
  • Once cooled, refrigerate the egg cups in an airtight container or zip bag for up to 3 days.

For lunch:

  • To enjoy these at room temperature, place 4 to 6 egg cups inside the main compartment of a lunch container.
  • To eat warm, heat the egg cups in the microwave for 1 minute, stopping the microwave half way through to flip them over. Immediately transfer them inside a thermos container and close the lid.
  • Finish packing this lunch by adding fruit, veggies, and any other sides inside a bento box. Pack everything inside a lunch bag.

Notes

The cooking time using a mini muffin tray (yields 24) is approximately 16 to 18 minutes. Using a regular-sized muffin tray (yields 12) requires a longer baking time of approximately 26 to 28 minutes.

Equipment

101 packed lunches on an ipad with a lunch packing tips ebook on an iphone
101 Packed Lunches
Thermos
Kids Lunch Box
ice pack
Mini Muffin Pan

Nutrition

Serving: 6 egg cups | Calories: 147kcal | Carbohydrates: 2g | Protein: 16g | Fat: 8g | Saturated Fat: 3g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 3g | Trans Fat: 0.03g | Cholesterol: 252mg | Sodium: 271mg | Potassium: 129mg | Sugar: 1g | Vitamin A: 438IU | Calcium: 169mg | Iron: 1mg

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5 from 12 votes (12 ratings without comment)

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Laura Fuentes holding a stack of lunchboxes and a school lunch bag

My name is Laura Fuentes
I’m here to help you simplify school lunches with fresh ideas your kids will actually eat.

Mom of 3. Certified in Integrative Nutrition. 5x Cookbook Author.

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