Prepare the Crust: Preheat oven to 375°F. Flatten and press the biscuit dough into the bottom of a greased pizza pan or baking sheet, forming a crust. Bake for about 8-10 minutes, until lightly golden.
Cook the Sausage: In a large skillet, brown the breakfast sausage over medium heat. Once fully cooked, remove the sausage and set aside, leaving the drippings in the pan.
Make the Gravy: In the same skillet, sprinkle flour over the drippings, stirring constantly to form a roux. Slowly whisk in the milk, bringing the mixture to a simmer. Cook until thickened, about 5-7 minutes. Season with salt, black pepper, and crushed red pepper flakes if using. Stir the cooked sausage back into the gravy.
Scramble the Eggs: In a separate skillet, melt butter over medium heat. Beat the eggs and pour them into the skillet, cooking until scrambled and fluffy.
Assemble the Pizza: Spread the sausage gravy evenly over the baked biscuit crust. Top with scrambled eggs and sprinkle shredded cheddar cheese over everything.
Bake Again: Return the pizza to the oven and bake for another 5-7 minutes, or until the cheese is melted and bubbly.
Garnish and Serve: Slice and serve warm, garnished with fresh parsley if desired.
