Beef (or Hamburger) Stroganoff

1 # beef (round steak 1/4 ") or ground beef
2/3 cup water
3 oz can mushrooms
2 stalks celery, chopped
1 green pepper, chopped
1 pkg onion soup mix
1 cup sour cream
2 tBsp flour
noodles or rice

Brown beef. Add water and veggies, including liquid from mushrooms. Stir in soup mix. Heat to boiling. Blend sour cream and flour, then add to beef. Cook and stir until sauce thickens. Serve over noodles or rice.

Gretchen