1 lb. hamburger
1 env. taco seasoning
1 sm. onion
1 box Kraft macaroni and cheese dinner

Make macaroni and cheese dinner according to directions on box. Brown hamburger and onion; add taco seasoning.

Mix all ingredients together and pour into casserole dish. Top with cracker crumbs and grated cheese. Bake at 350 degrees for 30 minutes.