Follow these simple steps to create your Biscuits and Gravy Breakfast Casserole:

1. Preheat the Oven: Preheat your oven to 350°F (175°C).
2. Prepare the Baking Dish: Grease a 9×13-inch baking dish with cooking spray or butter.
3. Cook the Sausage: In a skillet over medium heat, cook the breakfast sausage until browned and fully cooked. Drain excess fat if necessary.
4. Cut Biscuits: Open the can of flaky biscuits and cut each biscuit into quarters.
5. Layer the Biscuits: Spread the biscuit pieces evenly across the bottom of the prepared baking dish.
6. Add Sausage: Evenly distribute the cooked sausage over the biscuit layer.
7. Sprinkle Cheese: Add the shredded cheddar cheese on top of the sausage.
8. Mix Eggs and Milk: In a large bowl, whisk together the eggs, milk, flour, salt, pepper, garlic powder, and onion powder until well combined.
9. Pour Egg Mixture: Carefully pour the egg mixture over the layered biscuits, sausage, and cheese.
10. Add Gravy: Spoon the sausage gravy over the top, making sure to distribute it evenly.
11. Bake: Place the casserole in the preheated oven and bake for 30-35 minutes, or until the eggs are set and the top is lightly golden.
12. Cool Slightly: Remove from the oven and let it cool for a few minutes before serving.

Following these steps will help you create an incredible Biscuits and Gravy Breakfast Casserole that your family will love!