Preheat oven to 350 degrees.
Spray a 9x13 pan with non-stick cooking spray. Cut the biscuits into 1" pieces and line the bottom of the pan.
Brown the sausage and scatter over the biscuits. Sprinkle with cheddar cheese.
Whisk eggs and milk with a pinch of salt and pepper and pour it over the pan.
Make gravy mix per package directions and pour over sausage/egg mixture.
Bake in preheated oven for about 30-45 minutes.