Combine meat, crumbs, spices, eggs and milk in bowl. Make into 2" balls. Saute onions in oil. Push aside and brown meatballs. Add boullion and bring to boil. Simmer for 25 minutes until meatballs are cooked through. Add mushrooms in last 5 minutes. Turn off heat and add parsley and sour cream. Let sit on stove long enough to heat through then serve with egg noodles.