Chili Mac Casserole

Cook macaroni according to package directions. Meanwhile, in a large nonstick skillet, cook the beef, onion and garlic over medium heat until meat is no longer pink, breaking meat into crumbles; drain. Stir in the tomatoes, beans, tomato paste, chiles and seasonings. Drain macaroni; add to beef mixture., Transfer to a 13x9-in. baking dish coated with cooking spray. Cover and bake at 375° until bubbly, 25-30 minutes. Uncover; sprinkle with cheese. Bake until cheese is melted, 5-8 minutes longer. If desired, top with sliced green onions.