Hands On: 20 minutes Total: 30 minutes Preheat oven to 350F. Spray 8- x 8-inch baking dish with cooking spray. Prepare pasta according to package directions; drain. Cook beef in large skillet over medium-high heat 7 minutes, or until browned and crumbled, stirring frequently; drain. Stir in spaghetti sauce and tomato paste; blend well. Spoon 1/2 cup meat sauce into bottom of prepared baking dish. Top with half the pasta, half the remaining sauce, and 1/2 cup cheese. Repeat layers, starting with pasta and ending with cheese. Bake, uncovered, 10 minutes or until cheese is melted. Serve immediately.