Meal Prep Images are for illustrative purposes only, may be inaccurate, and do not guarantee the presence or absence of specific ingredients. Egg Muffin Cups
Fluffy baked mini frittatas loaded with veggies and cheese that reheat in seconds for a protein-packed morning.
Contains common allergens
In the app, Listahan checks these against your household automatically.
Good to know
- Ready in under 30 minutes
Matched from this dish's own ingredients and timing. Browse more: 30-minute meals
Instructions
6 steps- 1
Preheat the oven to 350°F and generously coat a 12-cup standard muffin tin with cooking spray, making sure to reach into the bottom edges so the cups release cleanly.
- 2
In a large bowl, whisk the eggs and milk together with the salt and pepper until the mixture is uniform and slightly frothy, about 30 seconds.
- 3
Distribute the chopped spinach, diced bell pepper, and shredded cheddar evenly among the 12 muffin cups, filling each about one-third full of vegetables.
- 4
Pour the egg mixture over the vegetables, filling each cup to about three-quarters full and leaving room for the muffins to puff up while baking.
- 5
Bake for 18 to 22 minutes, until the centers are set and a toothpick inserted comes out clean and the tops are just beginning to turn golden.
- 6
Let cool in the pan for 5 minutes, then run a knife around each cup to release. Store in an airtight container in the fridge for up to 4 days and reheat for 30 seconds in the microwave.
Listahan Family Score™
79/100
Good fit for most families
Score reflects how well this recipe fits a typical busy household. In the app, your Family Score is personalized to your household's allergens, kids, and pantry.
Nutrition
per serving255
Calories
20 g
Protein
3 g
Carbs
17 g
Fat
Estimated per serving. Actual values depend on the brands and portions you use.
Listahan cooking guide
Chef notes & practical guide
Technique notes, ingredient swaps, serve-alongside ideas, storage guidance, and equipment for this recipe.
Cultural context
Egg muffin cups are a modern meal-prep staple built on the much older idea of the baked frittata, shrunk down into individual portions that bake in a standard muffin tin. Their popularity grew alongside the broader batch-cooking movement, since they reheat in seconds and pack easily into a weekday breakfast routine.
Listahan note
This version fills the vegetables in first and the egg mixture second, which keeps the vegetables from sinking to the bottom and gives each muffin a more even distribution of filling.
Technique cues
- Coating the muffin tin generously with cooking spray, reaching into the bottom edges, is what allows the muffins to release cleanly instead of tearing apart.
- Whisking the eggs and milk until slightly frothy incorporates a bit of air, which helps the muffins puff up light rather than baking dense.
- Filling the cups to about three-quarters full leaves enough room for the muffins to rise without overflowing onto the tin.
Kitchen flow
- Parallel prep
- Chop the vegetables while the eggs and milk are whisked together, so both components are ready to layer into the tin at once.
- Make-ahead
- These are built for batch-cooking; make a full tray on the weekend for grab-and-go breakfasts through the week.
- Leftover move
- Crumble a leftover muffin into a breakfast burrito or over avocado toast for variety.
- Cleanup rhythm
- Whisk the eggs directly in a large measuring cup with a spout, which makes pouring into each muffin cup neater and reduces drips.
Ingredient brief
Role, handling, and swap guidance for each key ingredient.
Large eggs
Base
Purpose: Eggs are the entire structure of the dish, setting into a soft, custardy texture as they bake around the vegetables and cheese.
Handling: Whisk thoroughly with the milk until uniform and slightly frothy before pouring.
Adaptation: A mix of whole eggs and egg whites can lighten the dish if you want less fat without losing volume.
Whole milk
Texture softener
Purpose: A small amount of milk keeps the baked eggs tender rather than rubbery.
Handling: Whisk it into the eggs fully before adding to the vegetables.
Adaptation: Unsweetened plant milk can replace dairy milk with a similar effect on texture.
Spinach and bell pepper
Vegetables
Purpose: They add color, nutrients, and texture that break up the softness of the baked egg.
Handling: Chop the spinach finely and dice the pepper small so both distribute evenly through each muffin.
Adaptation: Any quick-cooking vegetable like diced zucchini or mushrooms can replace either one.
Shredded cheddar cheese
Flavor and richness
Purpose: It melts into the eggs, adding a savory, slightly sharp flavor throughout.
Handling: Distribute it evenly among the cups along with the vegetables before adding the egg mixture.
Adaptation: Feta or a Mexican cheese blend both work well for a different flavor direction.
Technique notes
- Grease the tin thoroughly, including the bottom corners, since this is the most common reason muffins stick and tear on release.
- Bake just until the centers are set and a toothpick comes out clean; overbaking dries the eggs out and makes them rubbery.
- Let the muffins cool in the pan for a few minutes before running a knife around the edges, which helps them release cleanly.
Ingredient swaps
- Dairy-free direction
- Use a plant-based milk and skip or substitute the cheese with a dairy-free shred for a version without dairy.
- Meat addition
- Add cooked, crumbled bacon or diced ham for a heartier version.
- Extra veggie direction
- Swap in diced mushrooms, tomatoes, or zucchini depending on what needs using up in the fridge.
Serve alongside
- Fresh fruit
- Whole-grain toast
- Avocado slices
- Coffee
- Orange juice
- Herbal tea
Serving suggestions only — check pairings for your household's allergens.
Storage & reheating
- Refrigerate in an airtight container for up to 4 days.
- Reheat for about 30 seconds in the microwave for a quick, warm breakfast.
- Freeze individually wrapped muffins for up to 2 months; thaw in the fridge overnight or reheat from frozen for about a minute.
Equipment
- 12-cup muffin tin
- Whisk
- Large mixing bowl or measuring cup with a spout
Make this household-aware
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