Name: Overnight Breakfast Casserole
Prep time: 15 min
Cook time: 60 min
Total time: 75 min
Yield: 8
Ingredients: 12 slices bread (such as challah, brioche or any egg bread, preferably day old bread); 1 tbsp olive oil; 1 large onion (chopped); 1 lb Italian sausage (casings removed); 1 tsp dry mustard; 1/2 tsp salt (or to taste); 1/2 tsp pepper (or to taste); 1 medium red bell pepper (finely chopped); 3 green onions (chopped); 2 cups cheddar cheese (shredded); 8 large eggs; 2 cups milk