Nanny's Chicken Casserole

Brown chicken breasts (which have been shaken in a bag with flour, salt and pepper) in margarine slowly until golden brown. While browning, add onion.

Take out chicken and place in one layer in a 9 x 13-inch pan.

Put sliced fresh mushrooms in chicken pan and brown, then scatter over chicken.

Put 2 cans cream of celery soup in first pan with 1 can milk and 1/4 cup Worcestershire sauce.

Cook until chicken and mushroom flavor is absorbed.