Souper Stroganoff

1 to 1 1/2 pound sirloin, cut into pieces or strips
Chopped onion (as much as desired)
1 (10 3/4 ounce) can golden mushroom soup
1 soup can water
1 (4 ounce) can mushroom stems and pieces
Cooked wide egg noodles (at least 8 ounces)
1 cup sour cream

Brown meat and onion in pressure cooker with small amount of cooking oil. Add mushrooms and golden mushroom soup and 1 can water. Cook in pressure cooker for 10 minutes.

Remove from heat and let pressure drop on its own. Remove cover and add sour cream and noodles.