Cheesy Chili-Mac

spray(s) cooking spray

pound(s) uncooked lean ground beef

medium uncooked onion(s) chopped

canned stewed tomatoes Mexican-style (undrained)

cup(s) canned tomato juice

canned green chili peppers diced, drained

chili powder

cup(s) uncooked whole wheat elbow macaroni

canned pinto beans rinsed and drained

cup(s) Weight Watchers Reduced Fat Mexican style blend shredded cheese