This is my favorite stroganoff to this day; I know it's not true stoganoff but it is what my Mom called it. My mom would make it often especially when we were having company over. I believe it came from her friend that she was roommates in the hospital with when she had me.
Break meat into small chunks in skillet. Cook fat out od meat and spoon off grease. Add onion, garlic powder, mushroom soup, cheese, flour and salt and pepper. Mix well and cover skillet. Cook over low heat for 20-30 minutes. Stir in yogurt and worcestershire sauce thoroughly, heat but do not boil so it will not curdle. Pour into serving dish and sprinkle with parsely. Serve with hot rice.