Easy Tuna Casserole
["1 pkg. Kraft macaroni and cheese", "1 can tuna", "1 can Mexicorn", "1/4 c. chopped onion"]
["Make macaroni as directed on package.", "Mix all ingredients (do not drain tuna or corn).", "Put in casserole dish; bake until heated through."]
["macaroni", "tuna", "Mexicorn", "onion"]