A hearty, oven-baked breakfast casserole loaded with eggs, sausage, bacon and cheese — perfect for feeding a crowd or prepping ahead for busy mornings.
Recipe Card
Servings/Yield: 8–10 servings
Prep Time: 20 minutes
Cook Time: 35–40 minutes
Total Time: ~1 hour
Dietary Badges: Gluten-Free • High-Protein • Family-Friendly
Ingredients
- 1 lb bacon, cooked and chopped
- 12 oz breakfast sausage roll, uncooked (or ground sausage of choice)
- 28 oz frozen potatoes with peppers and onions, thawed
- 2 cups shredded cheddar cheese (medium-sharp recommended)
- 12 large eggs
- 1/2 cup whole milk
- 1 1/2 tsp kosher salt
- 1 tsp freshly ground black pepper
- 1 tsp garlic powder
Instructions
- Preheat oven to 375°F (190°C). Grease a 9×13-inch baking dish with non-stick cooking spray.
- Heat a large skillet over medium heat and cook the sausage until fully browned, breaking it apart as it cooks. Drain excess grease if needed.
- Add the cooked sausage, chopped bacon, thawed potatoes, and shredded cheese to the prepared baking dish. Toss gently to combine evenly.
- In a large mixing bowl, whisk together eggs, milk, salt, pepper, and garlic powder until fully blended.
- Pour the egg mixture evenly over the potato and meat mixture in the dish.
- Bake uncovered for 35–40 minutes, or until the center is set and a knife inserted comes out clean.
- Rest for 5–10 minutes before slicing and serving.
Additional Notes
- Thaw frozen potatoes fully to avoid excess moisture.
- This casserole is naturally gluten-free.
- Ingredient substitutions and variations are listed below.
Brief Introduction
This baked egg breakfast casserole is a classic, reliable dish that works just as well for holiday mornings as it does for weekly meal prep. It combines familiar breakfast staples into one pan, making it ideal when you want something filling without standing over the stove. I often make this when hosting guests because it feeds a crowd and frees up time while it bakes.
Step-by-Step Cooking Guide
Stage 1: Prepare the Proteins
Cook the sausage until evenly browned and crumbly. Fully cooking it beforehand ensures the casserole bakes evenly without excess grease.
Tip: Drain the sausage on paper towels if it releases a lot of fat.
Stage 2: Build the Casserole Base
Layer potatoes, sausage, bacon, and cheese in the baking dish, tossing gently so every bite has a balance of textures.
Tip: Spread ingredients evenly to avoid dense pockets.
Stage 3: Add the Egg Mixture & Bake
Whisk eggs thoroughly so yolks and whites are fully combined, then pour slowly over the casserole base. Bake until just set for a creamy texture.
Tip: If the top browns too quickly, loosely cover with foil for the final 10 minutes.
Ingredient Details & Substitution Tips
Eggs
- Provide structure and protein.
- Use large eggs for consistent results.
Potatoes with Peppers & Onions
- Add bulk and built-in flavor.
- Substitute with plain hash browns plus 1 cup diced bell peppers and onion.
Bacon & Sausage
- Create richness and savory depth.
- Substitute turkey bacon or chicken sausage for a lighter option.
Cheese
- Medium-sharp cheddar balances saltiness and meltability.
- Swap with Monterey Jack, Colby, or a cheddar blend.
Equipment Alternatives
- No skillet? Brown sausage in the oven on a lined baking sheet.
- No 9×13 dish? Use two smaller baking dishes and reduce bake time slightly.
Recipe Variations & Serving Suggestions
Flavor Variations
- Add 1 cup sautéed mushrooms or spinach.
- Stir in 1/2 tsp smoked paprika or red pepper flakes.
- Top with sliced green onions after baking.
Dietary Variations
- Lower-carb: Replace potatoes with cauliflower florets.
- Dairy-free: Use dairy-free cheese and unsweetened almond milk.
Serving Suggestions
Serve with fresh fruit, toast, or a light green salad. Ideal for brunch buffets or breakfast-for-dinner nights.
Storage & Make-Ahead Information
- Refrigerator: Store covered for up to 4 days.
- Freezer: Freeze individual portions up to 2 months.
- Reheating: Microwave portions in 1-minute intervals or reheat covered in a 350°F oven until warmed through.
Quality Note: Texture is best within the first 48 hours.
Nutrition Information (Approximate, Per Serving)
- Calories: ~420 kcal
- Carbs: ~18 g
- Protein: ~24 g
- Fat: ~28 g
Dietary Highlights: High-Protein • Gluten-Free
Allergens: Eggs, Dairy
Frequently Asked Questions
Can I make this the night before?
Yes. Assemble, cover, and refrigerate overnight. Bake fresh in the morning.
Can I use egg whites only?
Yes, replace each whole egg with 1/4 cup liquid egg whites.
Why is my casserole watery?
Frozen potatoes may not have been fully thawed or drained.
Can I double this recipe?
Yes, use two baking dishes rather than one deeper pan.
Optional Personal Notes & Engagement
This is one of those dependable recipes that adapts easily to what’s in your fridge. Once you’ve made it once, it becomes a template for endless variations.
Try it and share your favorite add-ins or variations in the comments. If you meal-prep this for the week, let others know how it worked for you.
