• Preheat the oven to 350º.

Gravy

• In a large skillet, cook the sausage on medium-high heat until crumbly and brown. Remove 1 ½ cups to a paper towel lined plate for later. Leave the remaining sausage in the skillet.
• Reduce the heat to medium and add a teaspoon of butter. Once melted, add the flour and whisk for about 2 minutes. Gradually add 2 cups of milk and whisk until it has thickened. Salt and pepper to taste.

Biscuits

• Add flour, baking powder, baking soda, sugar, and salt to a large bowl whisking to combine. Combine cold buttermilk and warm melted butter in a measuring cup and stir to combine. Add it to the dry ingredients and use a rubber spatula to mix just until incorporated.

Casserole

• Whisk the eggs, milk, and ½ cup of the cheese together and pour into the bottom of a 9 x 13 casserole dish. Add the reserved sausage to the top of the egg mixture.
• Use an ice-cream scoop or large spoon and scoop 12 balls of biscuit dough on top of the egg mixture. Pour ½ of the gravy over the top of the biscuits and add 1 ½ cups of the cheese to the top. Bake for 30-33 minutes until the top of the biscuits have started to brown and it is bubbly at the edges. Warm the remaining gravy. If it is too thick, add a little milk. Serve with remaining gravy.