Heat oven to 375°. Prepare pasta according to package directions. Brown sausage in a large saucepan; drain. Stir in Mama Mia Marinara Sauce Mix and crushed tomatoes; bring to a simmer and add cooked pasta and black olives, if desired. Spread mixture into an ungreased 9 x 13 baking pan. Sprinkle cheese over top. Bake uncovered 15-20 minutes or until sauce is bubbly and cheese is melted. Serves 6.