Make-Ahead Breakfast Casserole – Hearty, Convenient, and Full of Flavor

This Make-Ahead Breakfast Casserole is a lifesaver for busy mornings. Packed with eggs, veggies, cheese, and savory sausage or turkey, it combines wholesome ingredients into a warm, satisfying dish that you can prepare in advance. Whether for a family breakfast, brunch gathering, or meal prep, this casserole offers a comforting start to your day with minimal morning effort.

Why You’ll Love This Recipe

Protein-Packed – Eggs and lean sausage provide lasting energy to power through your morning.
Veggie-Loaded – Bell peppers, spinach, or mushrooms add nutrition and fresh flavor.
Make-Ahead Friendly – Assemble the night before and bake when ready for hassle-free mornings.
Cheesy & Comforting – Melted cheese brings richness and satisfying texture.

Ingredients

  • 8 large eggs
  • 1 cup skim or low-fat milk
  • 1 cup cooked lean sausage or turkey sausage, crumbled
  • 1 cup shredded reduced-fat cheddar cheese
  • 1 cup chopped bell peppers
  • 1 cup fresh spinach, chopped
  • ½ cup diced onion
  • 1 tsp garlic powder
  • ½ tsp salt
  • ¼ tsp black pepper

Instructions

1. Prepare the Casserole
In a large bowl, whisk eggs and milk together until smooth. Stir in cooked sausage, cheese, bell peppers, spinach, onion, garlic powder, salt, and pepper.

2. Assemble & Refrigerate
Pour the mixture into a greased 9×13-inch baking dish. Cover tightly with foil and refrigerate overnight or up to 24 hours.

3. Bake the Casserole
Preheat oven to 350°F (175°C). Remove foil and bake uncovered for 35–40 minutes, or until the eggs are fully set and the top is lightly golden.

4. Serve Warm
Let cool for a few minutes before slicing. Serve as is or with a side of fresh fruit.

Nutritional Information (Per Serving)

Calories: 210
Protein: 18g
Fat: 12g
Carbohydrates: 6g
Sugar: 3g
Fiber: 1g

Tips for Success

  • Use Fresh Ingredients – Fresh veggies and lean sausage keep the casserole flavorful and healthy.
  • Customize Cheese – Swap cheddar for mozzarella, feta, or your favorite cheese.
  • Add Herbs – Fresh parsley or chives add brightness and depth to the flavor.

Why This Recipe Works

The combination of protein-rich eggs and sausage with nutrient-packed vegetables makes this casserole both filling and balanced. Preparing it ahead saves time and stress, so you can enjoy a wholesome, homemade breakfast even on the busiest mornings.

This Make-Ahead Breakfast Casserole is a simple, delicious, and nourishing way to start your day. With hearty ingredients and easy prep, it’s perfect for feeding a crowd or enjoying leftovers throughout the week.

Make-Ahead Breakfast Casserole – Hearty, Convenient, and Full of Flavor

Servings

8

servings
Prep time

15

minutes
Cooking time

40

minutes
Calories

210

kcal

A protein-packed breakfast casserole loaded with eggs, veggies, sausage, and cheese. Prepared the night before and baked fresh in the morning, it’s a convenient and satisfying start to any day.

Ingredients

  • 8 large eggs

  • 1 cup skim or low-fat milk

  • 1 cup cooked lean sausage or turkey sausage, crumbled

  • 1 cup shredded reduced-fat cheddar cheese

  • 1 cup chopped bell peppers

  • 1 cup fresh spinach, chopped

  • ½ cup diced onion

  • 1 tsp garlic powder

  • ½ tsp salt

  • ¼ tsp black pepper

Instructions

  • Prepare the Casserole
    In a large bowl, whisk eggs and milk together until smooth. Stir in cooked sausage, cheese, bell peppers, spinach, onion, garlic powder, salt, and pepper.
  • Assemble & Refrigerate
    Pour the mixture into a greased 9×13-inch baking dish. Cover tightly with foil and refrigerate overnight or up to 24 hours.
  • Bake the Casserole
    Preheat oven to 350°F (175°C). Remove foil and bake uncovered for 35–40 minutes, or until the eggs are fully set and the top is lightly golden.
  • Serve Warm
    Let cool for a few minutes before slicing. Serve as is or with a side of fresh fruit.

Notes

  • Use Fresh Ingredients – Fresh veggies and lean sausage keep the casserole flavorful and healthy.
    Customize Cheese – Swap cheddar for mozzarella, feta, or your favorite cheese.
    Add Herbs – Fresh parsley or chives add brightness and depth to the flavor.

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