Creating Biscuits and Gravy Breakfast Casserole is straightforward when you follow these steps:

1. Preheat Oven: Preheat your oven to 350°F (175°C).

2. Cook Sausage: In a skillet over medium heat, cook the breakfast sausage until browned and fully cooked. Drain any excess fat and set aside.

3. Prepare Biscuit Dough: Open the refrigerated biscuit dough and cut each biscuit into quarters. Set aside.

4. Mix the Casserole Base: In a large bowl, whisk together the milk, eggs, cream of mushroom soup, garlic powder, onion powder, salt, and pepper until well combined.

5. Combine Ingredients: Add the cooked sausage and half of the shredded cheese to the mix. Stir until evenly combined.

6. Layer the Dish: Grease a 9×13 inch baking dish. Place half of the biscuit pieces on the bottom of the dish. Pour the sausage and egg mixture over the biscuits, spreading it evenly.

7. Top with Biscuits: Layer the remaining biscuit pieces over the sausage mixture, pressing down gently.

8. Add Cheese: Sprinkle the remaining cheddar cheese evenly on top.

9. Bake: Place the casserole in the preheated oven and bake for 40-45 minutes until the top is golden and the casserole is set.

10. Cool: Remove from the oven and let it cool for 5-10 minutes. This will make it easier to slice.