2 lbs. ground beef
1 c. dried bread crumbs
1/2 c. sour cream
1 tbsp. minced onion
2 tsp. salt
1 (4 oz.) can mushrooms, stems and pieces
1/4 c. ketchup
Parsley (use later)

Combine all ingredients. Bake at 350 degrees for 50 minutes. Drain. Put ketchup and parsley on top. Bake 5 or 10 minutes more.