1 1/2 lb Ground beef or ground beef
-and pork
2 lg Onions (finely chopped)
1/2 lb Butter, divided
Salt and Pepper to taste
1 c  Chopped mushrooms (optional
4 tb Sour cream (optional)

Saute meat in 1/3 of butter till almost fully cooked. (Meat should not be
overcooked.) Drain. Use balance of butter and saute onion till crystal
clear. Add meat, seasonings and optional ingredients to taste. Let mixture
cool.