1-Preheat your oven: Start by preheating your oven to 350°F to set the stage for a bubbly, golden dish.

2-Brown the meat: Brown the 1 pound of hamburger or sausage in a skillet, then drain the fat to keep things light.

3-Cook the vegetables: Next, add the diced green pepper, chopped mushrooms, and onions to the meat, stirring until they’re heated through for that fresh veggie pop.

4-Mix sauce and bake: Once mixed, stir in the pizza sauce until you reach your preferred consistency, then pour it all into a greased 9 x 13 inch casserole dish. Spoon the 1 cup of sour cream evenly over the top and swirl it gently through the mixture for creaminess. Sprinkle on the 1 1/2 cups of shredded mozzarella cheese, add a layer of 3/4 cup pepperoni, and unroll the package of crescent roll dough over everything before topping with 1/4 cup grated Parmesan cheese.

5-Bake the casserole: Bake for 20 to 30 minutes until the casserole is bubbly and the dough is fully cooked, giving you a hearty meal in no time.