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Individual Breakfast Casseroles Recipe

4.5 from 116 reviews

These Individual Breakfast Casseroles are a quick, convenient, and delicious way to start your morning. Packed with eggs, savory sausage, melted cheese, and fresh vegetables, they bake into perfectly portioned, protein-rich muffins that are easy to customize and perfect for meal prep or busy mornings.

Ingredients

Scale

Breakfast Casserole Ingredients

  • 6 large eggs
  • 1 cup cooked sausage, crumbled
  • 1 cup shredded cheddar cheese
  • 1/2 cup diced bell peppers (any color)
  • 1/4 cup diced onions
  • 1/2 cup chopped fresh spinach
  • Salt and pepper, to taste
  • Non-stick cooking spray or butter for greasing muffin tin

Instructions

  1. Preheat the oven: Set your oven to 350°F (175°C) to prepare for baking your breakfast casseroles.
  2. Prepare the muffin tin: Grease a standard 12-cup muffin tin with non-stick cooking spray or butter to prevent sticking.
  3. Cook the sausage: In a skillet over medium heat, cook the sausage until browned and fully cooked. Drain excess fat.
  4. Mix eggs and seasonings: In a large bowl, whisk together the eggs, salt, and pepper until well combined.
  5. Combine ingredients: Add the cooked sausage, shredded cheese, diced bell peppers, onions, and spinach to the egg mixture. Stir gently to combine evenly.
  6. Fill cupcake cups: Pour the mixture evenly into the prepared muffin tin cups, filling each about three-quarters full.
  7. Bake: Place the muffin tin in the preheated oven and bake for 20 to 25 minutes, or until the casseroles are set and lightly golden on top.
  8. Cool and serve: Remove the casseroles from the oven and let them cool for a few minutes before carefully removing them from the tin. Serve warm.

Notes

  • Feel free to swap the sausage for bacon or omit for a vegetarian version using plant-based sausage or extra vegetables.
  • You can customize the vegetable mix by adding mushrooms, zucchini, or tomatoes based on preference.
  • These casseroles can be made ahead and stored in the refrigerator for up to 4 days or frozen for up to 1 month.
  • Reheat in microwave or oven before serving for best results.
  • Use a silicone muffin tin liner to make removal even easier and avoid sticking.

Keywords: breakfast casserole, egg muffin, sausage breakfast, individual casseroles, make ahead breakfast, easy breakfast recipe