Best Frittata Egg Muffins (Printable)

Fluffy egg muffins filled with vegetables and cheese, perfect for quick breakfast or snack.

# What You Need:

→ Eggs and Dairy

01 - 8 large eggs
02 - 1/3 cup whole milk
03 - 1 cup shredded cheddar cheese
04 - 1/3 cup grated Parmesan cheese

→ Vegetables

05 - 1 cup baby spinach, chopped
06 - 1/2 cup red bell pepper, diced
07 - 1/2 cup cherry tomatoes, quartered
08 - 1/3 cup red onion, finely chopped

→ Herbs & Seasoning

09 - 1/4 teaspoon salt
10 - 1/4 teaspoon freshly ground black pepper
11 - 1/2 teaspoon dried Italian herbs

→ Oils

12 - 1 tablespoon olive oil

# Steps:

01 - Preheat the oven to 375°F. Lightly grease a 12-cup muffin tin with olive oil or nonstick spray.
02 - Heat olive oil in a skillet over medium heat. Add red onion and bell pepper; sauté for 3–4 minutes until softened. Stir in spinach and cook for 1 minute until wilted. Remove from heat and let cool slightly.
03 - In a large bowl, whisk eggs, milk, salt, pepper, and Italian herbs until well combined.
04 - Fold in cheddar cheese, Parmesan, sautéed vegetables, and cherry tomatoes.
05 - Divide the egg mixture evenly among the muffin cups, filling each about 3/4 full.
06 - Bake for 18–20 minutes, or until the muffins are puffed and set in the center.
07 - Let cool for 5 minutes before removing from the tin. Serve warm or at room temperature.

# Expert Hints:

01 -
  • You can meal prep a whole weeks worth of handheld breakfasts in under 40 minutes
  • They reheat beautifully and actually taste better the next day
02 -
  • Overfilling the muffin cups causes sticking and makes removal nearly impossible
  • Letting the vegetables cool slightly before mixing prevents them from cooking the eggs prematurely
03 -
  • Use a cookie scoop for mess-free, even distribution of the egg mixture
  • Let the muffins cool completely before freezing to prevent ice crystals from forming