1 (6 1/2 oz.) can tuna, drained
1 can peas, drained
1 box macaroni and cheese
1/2 c. milk
1/2 c. potato chips
2 tbsp. butter

Cook macaroni as directed on box. Drain and put in one quart casserole. Stir in tuna, peas, milk, butter, and cheese. Sprinkle with chips. Bake, uncovered, in 350 degree oven, about 30 minutes.