Start by preheating your oven to 375°F (190°C). Lightly grease a 9x13-inch baking dish with cooking spray or butter to prevent sticking.

In a large skillet over medium heat, cook the sausage until it’s browned and fully cooked. Use a spatula to break it up into small crumbles. If you’re using any optional vegetables (like bell peppers or onions), toss them into the skillet during the last few minutes of cooking. Drain any excess grease and set aside.

Spread the cubed bread evenly across the bottom of your greased baking dish. This will act as the base of your casserole and soak up all the delicious flavors.

In a medium-sized bowl, whisk together the eggs, milk, salt, pepper, garlic powder, and onion powder. This mixture is the heart of your casserole, giving it that fluffy, custard-like texture.

Sprinkle the cooked sausage (and any sautéed vegetables, if using) evenly over the bread cubes. Next, pour the egg mixture over the top, making sure everything is well-covered. Finally, sprinkle the shredded cheese generously over the top for that golden, melty finish.

Place the casserole in your preheated oven and bake for 40-50 minutes, or until the top is golden brown and the center is set. You can test doneness by inserting a knife or toothpick into the middle—it should come out clean.

Once baked, allow the casserole to cool for about 5-10 minutes before slicing. This helps it set and makes serving easier. Pair it with a side of fresh fruit or a cup of coffee for the ultimate breakfast experience.