1 pkg. Velveeta shells & cheese dinner
1/2 c. chopped tomato
1 lb. ground beef
1 (8 oz.) tomato sauce
1/4 c. chopped onion
1/2 c. crushed potato chips

Prepare dinner as directed on package. Add tomato; mix lightly. Brown meat; drain. Stir in tomato sauce and onion. Spoon dinner mixture into 1 1/2 quart casserole dish. Top with meat mixture; sprinkle with chips. Bake at 350 degrees for 20 minutes or until thoroughly heated.