Tuna Casserole Supreme - cooking recipe

Ingredients

1 pkg. macaroni and cheese dinner
1 can (7 oz.) tuna, flaked
1 can (3 oz.) sliced mushrooms
1/2 c. sour cream
1/4 c. milk
2 Tbsp. frozen chopped onion
1/4 tsp. celery salt
1/8 tsp. pepper

Preparation

Prepare macaroni dinner as directed.
Add remaining ingredients.
Bake in a 1-quart casserole for 20 minutes at 350\u00b0.