Mom writes: This is very good. You could add asparagus or broccoli I think also. 8-19-90.
Cut uncooked chicken breasts into good-sized chunks. Put in 9 x 13 pan.
Mix 2 cans cream of mushroom soup, 2 cups sour cream, 1/2-1 package onion soup mix.
Combine above and spread on chicken. Bake 10-15 minutes. Stir and then bake again, for about 45 minutes total baking time at 350.