Easy Stroganoff

1 1 & 1/2 lbs round steak cut 1/4" x 1" x 3"
1 large onion diced
1 4 oz can mushroom pieces
1 can (10 oz?) cream of mushroom soup
6-8 oz milk
6 oz Sour cream
Worchestershire Sauce to taste and color
Noodles or mashed potatoes

In a large pan (with cover works best)

Saute onion (part oil and part butter are best but Pam works too)
After onion softens add beef and brown well
When well browned push to side
Mix well mushroom soup and milk in pan
Add mushrooms and simmer 10-15 minutes
Turn off then add sour cream and Worchestershire
Serve over cooked Noodles or stiff mashed potatoes