Zesty Italian Pasta

Zesty Italian Pasta

1 medium onion, cut into half slices 1 pound Italian sausage 2 14.5 oz. cans Red Gold petite diced tomatoes with garlic & olive oil 1 8 oz. can Red Gold Tomato sauce 1/2 cup shredded mozzarella cheese 1 16 oz. package pasta, cooked and drained In a large skillet...