Puree, or finely chop 1/2c of the roasted red peppers. Add the 1/4c tomato sauce and blend well. Spread on prepared pizza crust. Sprinkle with the garlic powder and italian seasoning.
Top with parmesan cheese, provolone cheese and mozzarella. Add the sliced sausage, artichoke hearts and remaining red peppers. Sprinkle with basil, if using. Bake for 10-15 min. until cheese bubbly and edges of crust are beginning to brown.