Macaroni Casserole - cooking recipe

Ingredients

1 (8 oz.) pkg. macaroni, cooked as directed on pkg.
2 1/2 c. grated cheese
1 can mushroom soup
1/2 c. mayonnaise
1/4 c. pimento
1 small onion
1/2 c. milk
3 Tbsp. butter

Preparation

Mix together.
Bake for 30 minutes at 350\u00b0.
Grate cheese on top, if desired.