Cut the green pepper and onion into slices. Add to a pan sprayed with olive oil on medium heat. Cook for 10 minutes stirring occasionally.

Cut the roast beef into bite size pieces and add to the onions and green pepper. Add the garlic powder, salt and pepper and cook for 2 minutes.

Unroll the pie dough on a baking sheet sprayed with non-stick spray.

Spread the alfredo sauce onto the pizza dough then add the onions, green pepper and roast beef.

Bake according to the pizza dough directions - 9 to 13 minutes. Once the crust is golden and the cheese is melted it is ready.