Macaroni And Tuna Casserole - cooking recipe

Ingredients

2 Tbsp. chopped onion
2 Tbsp. butter
1 can cream of celery soup
1 c. milk
1 (7 oz.) can tuna
1 tsp. salt
dash of pepper
3 c. cooked macaroni
1 c. grated cheese

Preparation

Mix all ingredients and bake at 350\u00b0 until bubbling and brown.