Name: Sausage and Egg Croissant Breakfast Casserole
Prep time: 15 min
Cook time: 50 min
Total time: 65 min
Yield: 12
Ingredients: 1 pound pork sausage (, remove any casing if there is any); 1/2 yellow onion (, chopped); 8 large eggs; 1 1/2 cups milk; 2 teaspoons ground mustard; 1 teaspoon dried thyme; 2 tablespoons brown sugar; 1/2 teaspoon Kosher salt; 1/2 teaspoon pepper; 6 large croissants (, cut into 2" chunks); 1 1/2 cups cheddar cheese (, shredded)