Meat Loaf Stroganoff

Meat Loaf Stroganoff 
Recipe Lady 

1 cup finely chopped onion 
1 cup mushrooms, stems closely trimmed, thinly sliced 
1/4 cup ff margarine 
1/4 cup red wine vinegar 
2 large eggs 
1 pound lean ground beef 
1 can kidney beans, drained, rinsed, and mashed
2 cups oatmeal 
1/2 cup finely chopped parsley 
1 cup ff sour cream 
1/2 teaspoon nutmeg 

Sauté the onion and mushrooms briefly in margarine until the
 mushrooms release their liquid. Add vinegar and continue
 cooking a few minutes more, until the mushrooms reabsorb
 the liquid. Cool. 

Beat the eggs in a mixing bowl. Add the beef, oats, parsley,
 sour cream and nutmeg; mix well. Add the onion-mushroom mixture
 and blend. Place the mixture in an oiled or buttered 9 x 5 x 3-inch
 loaf pan. Bake at 350 degrees F for 1 hour or until firm and browned. 

Serves 6 to 8.