Healthy Breakfast Casserole

1 hrTotal
8Servings
269Calories
15 minPrep
Healthy Breakfast Casserole

This healthy breakfast casserole is a hearty, one-dish meal that feeds a crowd and tastes even better the next day. Loaded with vegetables, eggs, and lean protein, it's the perfect make-ahead breakfast for busy mornings or weekend brunch.

Healthy Breakfast Casserole

Healthy Breakfast Casserole

Begin your day with a nutritious and hearty Healthy Breakfast Casserole. This versatile dish combines eggs, lean meats, fresh vegetables, and a sprinkle of cheese, baked to perfection in one easy casserole. Ideal for feeding a crowd or prepping meals for the week, this breakfast casserole provides a balanced mix of protein, healthy fats, and essential nutrients to keep you energized and satisfied all morning. Easy to customize with your favorite ingredients, this casserole is sure to become a staple in your breakfast rotation.
Prep Time 15 minutes
Cook Time 45 minutes
Total Time 1 hour
Course Breakfast
Servings 8
Calories 269 kcal

Equipment

  • 9x13 inch baking dish
  • Mixing bowls
  • Whisk
  • Knife
  • Cutting board

Ingredients
  

  • 10 large eggs
  • 1 cup milk dairy or non-dairy
  • 1 cup shredded cheese cheddar, mozzarella, or your favorite
  • 1 pound turkey sausage or chicken sausage cooked and crumbled
  • 1 cup diced bell peppers any color
  • 1 cup chopped spinach
  • 1 cup cherry tomatoes halved
  • 1/2 cup diced onion
  • Salt and pepper to taste
  • Optional: fresh herbs parsley, chives for garnish

Instructions
 

  • Preheat your oven to 375°F (190°C). Grease a 9x13 inch baking dish.
  • In a large mixing bowl, whisk together the eggs, milk, salt, and pepper until well combined.
  • Stir in the cooked sausage, bell peppers, spinach, cherry tomatoes, onion, and half of the shredded cheese.
  • Pour the mixture into the prepared baking dish and spread it out evenly.
  • Sprinkle the remaining cheese on top.
  • Bake in the preheated oven for 40-45 minutes, or until the eggs are set and the top is golden brown.
  • Remove from the oven and let it cool slightly before slicing.
  • Garnish with fresh herbs if desired. Serve immediately or store in the refrigerator for up to 4 days.
Keyword Easy Breakfast Recipe, Healthy Breakfast Casserole, Meal Prep, Nutritious Morning Meal, Protein-Packed Breakfast

Frequently Asked Questions About Breakfast Casserole

Yes, and it improves for it. Assemble it, cover, and refrigerate overnight so the eggs soak fully into the other ingredients. Add about 10 minutes to the bake time when going in from cold.

Vegetables releasing moisture during baking. Saute anything high in water — mushrooms, peppers, spinach, zucchini — before it goes in, and drain it well. Frozen vegetables added straight from the bag are the usual culprit.

Four days refrigerated, or three months frozen in portions. It reheats better than most egg dishes because the other ingredients hold moisture. This makes eight servings at 269 calories each.

Pro tip

Assemble the casserole the night before, cover, and refrigerate. In the morning, just pop it in the oven — the extra time allows the eggs to fully absorb into the other ingredients, resulting in a creamier texture.

Why this recipe works

A well-built breakfast casserole delivers balanced macros and a wide spectrum of micronutrients from whole food ingredients.

Eggs

  • The protein backbone of this dish — complete amino acid profile for muscle support
  • Rich in vitamins D and B12 for bone health and energy
  • Choline supports cognitive function and liver health

Vegetables (Bell Peppers, Spinach, Onions)

  • Bell peppers provide more vitamin C per serving than oranges
  • Spinach delivers iron, folate, and vitamins A and K
  • Onions contain quercetin, a powerful anti-inflammatory flavonoid
Nutrition
Calories269
Per serving · makes 8

Serving Suggestions & Storage

How to Serve

Cut into squares and serve with a side of fresh fruit, toast, or a simple green salad. Top individual portions with salsa, avocado slices, or a drizzle of hot sauce.

How to Store

Store covered in the refrigerator for up to 4 days. Reheat individual portions in the microwave for 1-2 minutes. Freeze individual wrapped portions for up to 3 months.

Frequently asked questions

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