Breakfast Egg Casserole Recipe

Savory Breakfast Egg Casserole Recipe to Start Your Day

Breakfast egg casserole recipe options have become a favorite solution for anyone who loves feeding a crowd without spending the morning tied to the stove.

This baked dish serves up comfort and satisfaction in every forkful, making it ideal for lazy weekend mornings, holiday gatherings, or meal prep sessions when you want something hearty waiting in the fridge.

You can customize it endlessly to suit different preferences, dietary needs, or whatever sounds good on any given day.

Leftovers reheat beautifully, so breakfast stays simple and delicious all week long.

Make one soon and see why so many people have added it to their regular rotation.

Why You’ll Love Breakfast Egg Casserole Ease

  • Easy Meal Prep: This breakfast egg casserole comes together super fast, giving extra breathing room during hectic mornings when feeding a hungry crew.
  • Crowd-Pleaser Potential: Your whole family will gobble this down, with hearty sausage, colorful veggies, and cheesy goodness that makes everyone happy at the breakfast table.
  • Flexible Flavor Canvas: Swap ingredients based on what’s hanging out in your refrigerator – sausage, different veggies, or cheese varieties work perfectly to match your taste preferences.
  • One-Pan Wonder: Minimal dishes and cleanup mean more relaxing time after breakfast, which everybody appreciates when starting their day.

Full Ingredient Breakdown for Breakfast Egg Casserole

Main Proteins:
  • 8 Large Eggs: These are the foundation of your casserole, providing rich protein and helping bind all the delicious ingredients together.
  • 1 Cup Of Cooked And Crumbled Breakfast Sausage: This adds hearty flavor and extra protein to make your breakfast more satisfying.
Dairy Components:
  • 1 Cup Of Shredded Cheddar Cheese: Sharp cheddar brings a creamy, tangy element that melts beautifully throughout your casserole.
  • 1 Cup Of Milk: Creates a smooth, custard-like texture that helps your eggs cook evenly.
Vegetable Mix:
  • 1 Cup Of Diced Bell Peppers: These colorful peppers add a sweet crunch and vibrant flavor to your breakfast dish.
  • 1/2 Cup Of Diced Onions: Provides a subtle savory base that deepens the overall taste of your casserole.
  • 2 Cups Of Chopped Spinach: Introduces a nutritious green element with a mild, fresh taste.
Bread And Seasonings:
  • 4 Slices Of Cubed Bread: Gives your casserole a delightful texture and helps soak up all the delicious egg mixture.
  • 1 Teaspoon Of Salt, 1/2 Teaspoon Of Pepper: Essential seasonings that enhance and balance the flavors of all ingredients.

Kitchen Tools for Breakfast Egg Casserole

  • 9×13-inch Baking Dish: Your perfect vessel for creating this hearty breakfast casserole, ensuring even cooking and easy serving.
  • Large Skillet: Where the sausage browns and vegetables dance together, building delicious flavor foundations.
  • Large Mixing Bowl: Essential for whisking eggs and combining all your tasty ingredients smoothly and thoroughly.
  • Whisk: Your trusty tool for blending eggs, milk, and seasonings into a silky, uniform mixture.
  • Cutting Board: A solid surface for chopping onions, bell peppers, and preparing your bread cubes with precision.
  • Sharp Knife: Helps slice and dice vegetables and bread quickly and cleanly.
  • Wooden Spoon or Spatula: Perfect for stirring and folding ingredients without damaging their texture.
  • Measuring Cups and Spoons: Guaranteed to help measure ingredients accurately for consistent results.

Easy Steps For Breakfast Egg Casserole

1

Warm Up the Oven

Set your oven to exactly 350°F and grab a 9×13 inch baking dish. Grease the dish thoroughly with butter or cooking spray so nothing sticks.

2

Brown the Sausage

Grab a skillet and cook 1 cup of breakfast sausage over medium heat until it’s nicely browned. Break the meat into small crumbles as it cooks. Once done, transfer to a plate and set aside.

3

Prepare the Vegetables

In the same skillet, sauté your vegetables at medium heat:

  • 1/2 cup diced onions
  • 1 cup diced bell peppers

Cook for 5-7 minutes until they soften. Then add 2 cups of chopped spinach and cook until the spinach wilts completely.

4

Create the Egg Base

Grab a large mixing bowl and whisk together:

  • 8 large eggs
  • 1 cup milk
  • 1 teaspoon salt
  • 1/2 teaspoon pepper

Whisk until everything is smooth and well combined.

5

Combine All Ingredients

Fold into your egg mixture:

  • 1 cup cooked sausage
  • Sautéed vegetables
  • 4 slices of cubed bread
  • 1 cup shredded cheddar cheese

Stir gently until everything is evenly distributed.

6

Bake the Casserole

Pour the mixture into your prepared baking dish. Slide it into the 350°F oven and bake for 30-35 minutes. You’re looking for a golden top and a firm center.

7

Rest and Serve

Let the casserole sit for 5-10 minutes after removing from the oven. This helps it set up nicely. Cut into squares and serve while warm.

Best Tips For Breakfast Egg Casserole

  • Choose a high-quality breakfast sausage that adds rich flavor to your casserole and complements the other ingredients perfectly.
  • Dice your onions and bell peppers evenly to ensure they cook uniformly and distribute great taste throughout the dish.
  • Grate fresh cheddar cheese instead of using pre-shredded varieties for a more melty and authentic texture in your casserole.
  • Use day-old bread or slightly stale bread cubes to help absorb the egg mixture and create a more cohesive, tender texture.
  • Check the casserole around 25 minutes to prevent overcooking, looking for a golden-brown top and set center that jiggles slightly when touched.

Breakfast Egg Casserole With Filling Options

  • Vegetarian Version: Replace breakfast sausage with crumbled firm tofu or plant-based sausage crumbles, using the same amount as the original meat portion.
  • Low-Carb Swap: Substitute bread cubes with cauliflower florets or zucchini chunks to reduce carbohydrate content while maintaining the casserole’s hearty texture.
  • Cheese Variety Option: Switch cheddar for Swiss, goat, or pepper jack cheese to create different flavor profiles that match your taste preferences.
  • Gluten-Free Adaptation: Use gluten-free bread cubes or almond flour-based bread to make the casserole safe for those with gluten sensitivities, keeping all other ingredients consistent.

Easy Breakfast Ways To Serve Egg Casserole

  • Portion Like a Pro: Cut the casserole into 6 hearty squares that will keep everyone at the table satisfied and smiling.
  • Perfect Breakfast Companion: Serve alongside a fresh fruit salad or crisp toast to balance the rich, savory flavors of the casserole.
  • Wine and Dine Breakfast: Pair with a light mimosa or fresh orange juice to complement the sausage and egg blend.
  • Meal Prep Magic: Store leftovers in an airtight container in the refrigerator for up to 3 days, reheating individual portions in the microwave for a quick breakfast.

Breakfast Egg Casserole Storage Tips

  • Refrigerate leftovers in an airtight container for quick and easy breakfast the next morning. The casserole stays fresh for 3-4 days.
  • Freeze individual portions wrapped tightly in plastic wrap and foil for up to 2 months. Thaw overnight in the refrigerator before reheating.
  • Reheat single servings in the microwave for 1-2 minutes, or warm the entire casserole in a 350F oven for 10-15 minutes until heated through.
  • Store ingredients separately before assembly if preparing ahead – keep cooked sausage, sauteed vegetables, and egg mixture refrigerated for up to 2 days for faster morning prep.

Breakfast Egg Casserole Common Queries

FAQ

Can I prepare this casserole the night before?

Absolutely! Assemble the entire casserole, cover it tightly with plastic wrap, and refrigerate overnight. When ready to bake, remove from the refrigerator 30 minutes before cooking and then bake as directed.

FAQ

What type of bread works best?

Slightly stale or day-old bread is perfect for this recipe. Sturdy breads like challah, French bread, or sourdough hold up well and absorb the egg mixture without becoming soggy.

FAQ

How can I make this casserole vegetarian?

Replace the breakfast sausage with plant-based sausage crumbles or additional vegetables like mushrooms or zucchini. The cheese and eggs will still provide plenty of protein.

FAQ

Is it possible to freeze this casserole?

Yes, you can freeze the baked casserole for up to 3 months. Wrap it tightly in aluminum foil and store in a freezer-safe container. Thaw overnight in the refrigerator and reheat in the oven.

FAQ

Can I swap out the cheese?

Definitely! Swap cheddar for Swiss, pepper jack, or gouda. Each cheese will give the casserole a different flavor profile and make it feel like a new dish.

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Breakfast Egg Casserole Recipe

Breakfast Egg Casserole Recipe


5 Stars 4 Stars 3 Stars 2 Stars 1 Star

4.7 from 34 reviews

  • Total Time: 45-50 minutes
  • Yield: 6 1x

Description

Breakfast Egg Casserole brings together hearty eggs, crispy bacon, and melted cheese for a morning meal that satisfies your hunger. Packed with flavor and simple to prepare, this dish will become your go-to weekend breakfast sensation.


Ingredients

Scale

Protein and Meat:

  • 1 cup cooked and crumbled breakfast sausage
  • 8 large eggs

Vegetables:

  • 2 cups chopped spinach
  • 1 cup diced bell peppers
  • ½ cup diced onions

Base and Seasonings:

  • 4 slices cubed bread
  • 1 cup milk
  • 1 cup shredded cheddar cheese
  • 1 teaspoon salt
  • ½ teaspoon pepper

Instructions

  1. Warm your oven to 350F and coat a 9×13 inch baking dish with cooking spray.
  2. Crumble 1 cup of breakfast sausage in a skillet, cooking until golden brown and fully cooked.
  3. Dice ½ cup onions and 1 cup bell peppers, sautéing in the same skillet for 5 minutes until softened.
  4. Add 2 cups chopped spinach to the skillet, cooking until leaves wilt and release moisture.
  5. Crack 8 large eggs into a spacious mixing bowl, whisking with 1 cup milk, 1 teaspoon salt, and ½ teaspoon pepper.
  6. Fold 4 sliced bread cubes, cooked sausage, sautéed vegetables, and 1 cup shredded cheddar into the egg mixture.
  7. Transfer the entire mixture to the prepared baking dish, spreading evenly with a spatula.
  8. Bake at 350F for 35 minutes, checking that the center sets and edges turn golden brown.
  9. Remove from oven and allow casserole to rest 10 minutes before slicing into generous squares.

Notes

  • Swap sausage with turkey bacon or plant-based crumbles for a lighter protein option that still delivers great flavor.
  • Prep vegetables and meat the night before to make morning assembly super quick and streamlined.
  • For a gluten-free version, replace regular bread cubes with gluten-free bread or skip bread entirely and add extra veggies.
  • Refrigerate any leftovers in an airtight container for up to three days, and reheat individual portions in the microwave for a fast breakfast.
  • Prep Time: 10-15 minutes
  • Cook Time: 35 minutes
  • Category: Casseroles
  • Method: Baking
  • Cuisine: American

Nutrition

  • Serving Size: 6
  • Calories: 360 kcal
  • Sugar: 3 g
  • Sodium: 720 mg
  • Fat: 27 g
  • Saturated Fat: 11 g
  • Unsaturated Fat: 13 g
  • Trans Fat: 0.5 g
  • Carbohydrates: 14 g
  • Fiber: 2 g
  • Protein: 22 g
  • Cholesterol: 280 mg
Daniel Navarro

Daniel Navarro

Culinary Content Director

Expertise

Mexican-inspired Menus, Seasonal Restaurant Specials, Shared Plate Dining, Tequila Pairings, Chef-driven Recipes

Education

City Colleges of Chicago
  • Program: Culinary Arts, Associate in Applied Science
  • Focus: Trained in hands-on food production in a commercial food-service setting, with coursework that covers culinary technique, ethnic and classical menus, business planning, cost control, and merchandising.

Daniel writes about bold flavors, chef-driven dishes, and the kind of restaurant moments that turn tacos, mezcal, and shared plates into a night worth repeating.

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