Preheat the Oven:
Preheat your oven to 350°F (175°C). Grease the 9x13-inch baking dish.
Cook the Sausage:
In a large skillet over medium heat, cook the sausage until browned and crumbled. Drain excess grease and set aside.
Prepare the Gravy:
In the same skillet, whisk together the sausage gravy mix and 2 cups of water. Cook over medium heat until thickened. Stir in the cooked sausage and set aside.
Cut the Biscuits:
Cut each biscuit into quarters and spread the pieces evenly over the bottom of the prepared baking dish.
Layer the Casserole:
Pour the sausage and gravy mixture evenly over the biscuit pieces.
Prepare the Egg Mixture:
In a medium mixing bowl, whisk together the eggs, milk, salt, pepper, garlic powder, and onion powder.
Assemble the Casserole:
Pour the egg mixture over the sausage and gravy layer. Sprinkle the shredded cheddar cheese evenly on top.
Bake the Casserole:
Place the casserole in the preheated oven and bake for 35-40 minutes, or until the eggs are set and the cheese is melted and bubbly.
Cool and Serve:
Allow the casserole to cool for 5-10 minutes before serving. Slice into squares and enjoy!
