Sausage Breakfast Casserole Recipe brings cheesy, savory comfort with golden edges and soft, custardy eggs in every bite. It suits busy families, holiday hosts, and meal preppers, and it takes about 15 minutes of prep, 45 minutes of baking, so you sit down in about 1 hour. I usually whisk it together while my coffee cools because I move faster when breakfast smells like sausage and cheddar.
Why This Sausage Breakfast Casserole Recipe
This Sausage Breakfast Casserole Recipe uses simple supermarket staples and minimal dishes. You brown sausage, whisk eggs and milk, and bake everything in one pan. The oven does the heavy lifting while you set the table or text the group chat about brunch.
You can swap ingredients based on what you already have. Bread or hash browns both work, and any melty cheese plays nice. I built this method to forgive minor goofs, which makes mornings calmer.
Ingredients You Need
- Pork breakfast sausage, 1 pound
- Frozen shredded hash browns, 20 ounces, thawed and patted dry
- Swap: use 6 cups of day-old bread cubes for a classic strata vibe.
- Eggs, 8 large
- Whole milk, 1.5 cups
- Rich option: use half-and-half for a creamier casserole.
- Cheddar cheese, 2 cups shredded
- Shortcut: pre-shredded works, though block cheese melts a bit smoother.
- Swap: Monterey Jack, Colby, or pepper jack.
- Onion, 1 small, diced
- Bell pepper, 1, diced
- Garlic powder, 1 teaspoon
- Dry mustard, 1 teaspoon
- Kosher salt, 1 teaspoon
- Black pepper, 1/2 teaspoon
- Paprika, 1/2 teaspoon
- Scallions or chives, 2 tablespoons, chopped for garnish
- Cooking spray or butter for greasing
Equipment
- 9×13 baking dish
- Large skillet
- Large mixing bowl and whisk
- Spatula and measuring tools
- Foil
How to Make Sausage Breakfast Casserole
- Prep: 15 minutes
- Cook: 45 minutes
- Total: 1 hour
- Heat the oven to 375°F. Grease a 9×13 dish with cooking spray or butter.
- Brown the sausage in a skillet over medium heat, 6 to 8 minutes, and break it up as it cooks. Drain excess fat so the casserole sets cleanly.
- Sauté the onion and bell pepper in the same skillet until tender, 3 to 4 minutes. Add them to the sausage.
- Spread thawed, dried hash browns or bread cubes in the greased dish. Scatter the sausage and veggies evenly over the top.
- Whisk the eggs, milk, garlic powder, dry mustard, salt, pepper, and paprika in a large bowl until smooth. Pour the mixture over the pan and press gently so the liquid covers the surface.
- Sprinkle cheddar over the top. Cover the dish with foil.
- Bake covered for 30 minutes. Remove the foil and bake until the center looks set and the top turns golden, about 15 minutes more.
- Check doneness: the center should not jiggle, a knife should come out clean, and the internal temp should hit 165°F.
- Rest the casserole for 10 minutes so slices hold their shape. This short pause also lets the cheese settle.
- Garnish with scallions or chives. Slice and serve warm.
Tips & Common Mistakes
- Dry the hash browns well or use day-old bread so the casserole sets instead of turning soggy.
- Drain sausage fat to avoid greasy edges.
- Stick to the 375°F bake so the top browns without overcooking the eggs.
- Avoid too much liquid. Keep milk at 1.5 cups for 8 eggs.
- Shred cheese from a block for the best melt, or use pre-shredded when you need a shortcut.
- Press the layers gently after pouring the egg mixture so it soaks in evenly.
- Let it rest 10 minutes before slicing. Hot cheese needs a moment to behave.
- Season boldly. Eggs dull flavor, so salt and spices matter.
- Use a 9×13 dish. A smaller dish can cause undercooked centers.
Variations I’ve Tried
- Southwest: add a small can of diced green chiles, use pepper jack, and finish with cilantro and salsa.
- Veggie lovers: swap half the sausage for sautéed mushrooms and spinach, then add feta crumbles.
- Everything bagel: use bagel cubes, add a teaspoon of everything seasoning, and top with cream cheese dollops.
- Bacon and sausage combo: use half bacon, half sausage for extra smoky flavor.
- Mediterranean: add sun-dried tomatoes, olives, and mozzarella, then finish with basil.
- Dairy-light: use 2% milk and a modest cheese sprinkle for a leaner pan.
- Gluten-free: use hash browns instead of bread.
How to Serve Sausage Breakfast Casserole
Serve warm squares with hot sauce, salsa, or a dollop of sour cream. Add a bright side like fruit salad or a simple arugula salad with lemon. Toast or English muffins soak up those cheesy edges nicely, and coffee or orange juice pairs like a charm.
Make-Ahead and Storage
- Make-ahead: assemble the pan, cover, and refrigerate up to 24 hours. Add 5 to 10 extra minutes to the bake if the dish goes into the oven cold.
- Fridge: store leftovers in airtight containers for up to 4 days.
- Freezer: wrap individual squares tightly and freeze up to 3 months. Thaw overnight in the fridge.
- Reheat: warm slices covered at 325°F for 12 to 15 minutes, or microwave in short bursts until hot.
Nutrition Information
Approx per serving, 12 servings with hash browns: 320 calories, 20g fat, 16g protein, 18g carbs, 1g fiber, 780mg sodium. With bread instead of hash browns: about 360 calories and 26g carbs. Values vary by brand and swaps.
Sausage Breakfast Casserole Recipe
Ingredients
Instructions
- Preheat oven to 375°F (190°C).
- Cook sausage in a skillet over medium heat until browned; drain excess fat.
- In a large bowl, whisk together eggs, milk, salt, and pepper.
- In a greased baking dish, layer the hash browns, cooked sausage, and shredded cheese.
- Pour the egg mixture over the layers.
- Bake uncovered for 40 minutes or until the eggs are set and the top is golden brown.
- Let stand for 5 minutes before serving.