Preheat oven to 425°F. Lightly spray pizza pan with vegetable pan spray.

Prepare hot roll mix according to package directions for pizza, using 2 tablespoons olive oil. Cover dough; let rest 10 minutes. Press out dough to fit pan. Brush with remaining 1 tablespoon oil.

In medium skillet, cook sausage over medium heat until cooked through; drain well. Spread pizza sauce over dough; sprinkle with cooked sausage, pepperoni, onion, pepper, mushroom and cheeses.

Bake 20-25 minutes or until crust is golden brown and cheese is completely melted and begins to brown.