1 lb. hamburger
1 can cream of mushroom soup
1 sm. can mushrooms
1 can water
1 tbsp. onion
8 oz. pkg. egg noodles
1/2 c. sour cream
1/4 lb. Velveeta cheese

Brown hamburger and onion seasoning with salt and pepper. Prepare egg noodles as instructed on package. Mix in 2 quart casserole dish hamburger, egg noodles, can of soup, can of water, mushrooms and 1/2 cup sour cream. Slice Velveeta and lay on top. Bake for 45 minutes.