Sausage and Cheddar Breakfast Casserole

Sausage and Cheddar Breakfast Casserole

Prep

20 min

Chill & rest

1 hr 10 min

Cook

45 min

Total

2 hr 15 min

Servings

8

Difficulty

Easy

Ingredients

• 1 lb breakfast sausage
• 1 small yellow onion, diced
• 1 red bell pepper, diced
• 6 cups day-old bread cubes (about 6 slices)
• 2 cups shredded sharp cheddar, divided
• 10 large eggs
• 2 cups whole milk
• 1 tsp dry mustard
• 3/4 tsp salt
• 1/2 tsp black pepper
• 2 green onions, sliced

Instructions

1. Brown the sausage in a large skillet over medium-high heat, breaking it up, about 7 minutes. Add the onion and bell pepper and cook 4 minutes more. Drain off excess fat.
2. Grease a 9x13-inch baking dish. Spread the bread cubes in it, top with the sausage mixture and 1 1/2 cups of the cheese.
3. Whisk the eggs, milk, dry mustard, salt and pepper. Pour over the casserole.
4. Cover and chill at least 1 hour or up to overnight.
5. Heat the oven to 350°F. Sprinkle the remaining cheese on top.
6. Bake uncovered 45 to 50 minutes, until the center is set and a knife comes out clean. Rest 10 minutes, top with green onions and cut into squares.

Why this recipe works

Day-old bread soaks up the egg custard like a sponge, and an hour in the fridge lets it absorb evenly so the bake is creamy, not dry. Dry mustard sharpens the cheddar flavor without tasting like mustard.

Tips, substitutions & storage

• Swap: Use diced ham, cooked bacon or plant-based sausage instead of pork sausage.
• Swap: Pepper jack or Swiss can replace the cheddar.
• Swap sausage for diced ham or crumbled bacon, or use 3 cups sautéed vegetables for a meatless version.
• Frozen hash browns (4 cups, thawed) can replace the bread for a gluten-free casserole.
• Cooked casserole keeps 4 days in the fridge or 2 months in the freezer, cut into portions.

Nutrition (estimated, per serving)

Calories

440

Protein

25g

Carbs

19g

Fat

29g

Fiber

1g

Sugar

5g

Sodium

900mg

Nutrition information is an automatic estimate based on typical ingredients and will vary with the brands and amounts you use. It is not medical or dietary advice.