Make-Ahead Holiday Breakfast Casserole

Ingredients

Serves 10. Tap to check off as you go.

• 1 lb breakfast sausage
• 1 red bell pepper, diced
• 1 yellow bell pepper, diced
• 3 cups baby spinach
• 6 cups cubed day-old bread (about 1/2 loaf)
• 2 cups shredded sharp cheddar, divided
• 10 large eggs
• 2 cups milk
• 1 tsp dry mustard
• 1 tsp kosher salt
• 1/2 tsp black pepper

Instructions

1. Brown the sausage in a large skillet over medium heat, breaking it up, about 8 minutes. Add the peppers and cook 3 minutes more, then stir in the spinach until wilted. Let cool slightly.
2. Grease a 9x13-inch baking dish. Spread the bread cubes in it, then scatter the sausage mixture and 1 1/2 cups cheddar over the top.
3. Whisk the eggs, milk, mustard, salt and pepper. Pour evenly over the casserole and press the bread down so it soaks.
4. Cover and refrigerate at least 4 hours or overnight.
5. In the morning, let it stand 30 minutes while the oven heats to 350°F. Top with the remaining cheese.
6. Bake uncovered 45–55 minutes, until puffed, golden and set in the center. Rest 10 minutes before cutting.