High-Protein Bite-Size Frittata Muffins

If mornings feel rushed but you still want something healthy, nourishing, and protein-forward, these bite-sized frittatas are easy to meal prep. They’re fluffy, savory, endlessly customizable, and easy to make ahead, so you’re not left scrambling (literally) first thing.

Think of these as the kind of AM meal prep you’ll look forward to—soft, savory, and balanced enough to carry you through the whole morning.

Bonus: they’re just as good warm as they are cold, which makes them perfect for travel or post-workout, on-the-go fuel.

Bite-Sized High-Protein Frittata Muffins

Recipe TypeMeal Prep

Dietary InfoVegetarian

Serving Size12 frittata muffins

Ingredients

Frittata Base
• 7 large eggs
• ¼ cup milk of choice
• 1½ tsp salt (plus more for vegetables)
• 1 tsp black pepper (plus more for vegetables)

Vegetables
• 1 tbsp extra virgin olive oil
• ¼ white onion, finely diced
• ½ cup mushrooms, finely diced
• 1 large bell pepper (or 2 small), finely diced
• ¼ cup cherry tomatoes, quartered
• 1 cup spinach, packed
• 1 bunch cilantro, finely chopped

Optional Add-Ins
• ½ cup cheese (goat or feta for soft + creamy; parmesan or sharp cheddar for bolder flavor)
• 2 tbsp cottage cheese, ricotta, Greek yogurt, or crème fraîche (extra creaminess + protein)
• 2 tbsp salsa
• ¼ cup cooked breakfast sausage or bacon, finely chopped (fully cooked)

Substitution Ideas
Swap or add veggies based on what you have: zucchini, squash, jalapeño, garlic, shallots, or herbs like thyme, rosemary, or oregano all work.

For Serving (Optional)
• 1 avocado, thinly sliced
• Extra fresh herbs (cilantro, parsley, chives)
• Additional cheese, sprinkled on top

Directions

1. Preheat the oven to 350°F (175°C). Line or lightly grease a 6-hole muffin tin.

2. Sauté the vegetables.
Heat olive oil in a pan over medium heat. Add onion and sauté for 1 minute. Add mushrooms and bell pepper, and cook for 2–3 minutes, stirring often, until excess moisture evaporates. Add cherry tomatoes and cook for 1 more minute, stirring continuously. Add spinach and let it wilt. Season with salt and pepper to taste. Transfer to a bowl and let cool for about 7 minutes.

3. Make the frittata base.
While the vegetables cool, whisk eggs and milk until fully combined. Season with salt and pepper.

4. Combine.
Stir the cooled vegetables, cilantro, and any optional add-ins into the egg mixture.

5. Bake.
Fill each muffin cup about ¾ full. Bake for 12–15 minutes, until puffed, set, and just slightly jiggly in the center.

6. Serve.
Enjoy as-is, or top with sliced avocado, a spoonful of salsa, extra herbs, or a sprinkle of cheese for a heartier moment.

Top Tip

Always sauté vegetables before adding them to eggs. This prevents excess moisture and keeps the frittatas fluffy (not watery).

Storage

• Fridge: Store in an airtight container for 3–4 days.
• Reheat: Microwave in 30-second intervals or warm in a 350°F oven for 5–7 minutes.
• Freeze: Wrap individually and freeze for up to 3 months. Defrost in the microwave, oven, or overnight in the fridge.

Make It Yours

• More muffins: Double the recipe.
• Full frittata: Bake in a greased dish at 350°F until fully set.
• Egg white option: Swap 7 whole eggs for 9 egg whites.

Nutrition Notes

Eggs are a complete protein, meaning they contain all 9 essential amino acids. Adding Greek yogurt, cottage cheese, or ricotta boosts both protein and creaminess, while the veggies add fiber and micronutrients. The result is a high-protein, low-carb breakfast that supports muscle repair and keeps you full well past mid-morning.

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