rigatoni recipe

aked Rigatoni with Sausage and Cheese Ingredients: 1 pound rigatoni pasta 1 pound Italian sausage (mild or spicy), casings removed 1 small onion, finely chopped 3 cloves garlic, minced 1 can (28 ounces) crushed tomatoes 1 can (15 ounces) tomato sauce 1 teaspoon dried basil 1 teaspoon dried oregano 1/2 teaspoon red pepper flakes (optional)