Hands On: 10 minutes Total: 40 minutes Cook pasta according to package directions. Cook sausage and onions in large skillet over medium-high heat until sausage is evenly browned and onions are tender while pasta is cooking, stirring frequently; drain. Stir in diced tomatoes with their juice and the tomato paste; cook until heated through, stirring occasionally. Drain pasta. Add to sausage mixture; mix lightly. Sprinkle with cheese.