Finnish Meat Loaf

4 T. (1/2 stick) butter

1 C. chopped mushrooms

1/2 C. chopped onion

1 1/2 lbs. ground beef

1/2 lb. ground pork

1/2 lb. ground veal

1/2 lb. ground ham

1/4 C. minced parsley

Freshly ground pepper to taste

1 C. grated Gruyere cheese

1/2 C. heavy cream or milk

Sour cream, optional

Preheat oven to 350 degrees. Saute chopped mushrooms and onion in the butter over medium heat until the onion is soft, about 5 minutes. Add the cooked mixture to the remaining ingredients, reserving 1/4 cup of the cheese for the top. Mix together and press into a 9- by 5-inch loaf pan. Sprinkle the top with reserved cheese.

Bake meatloaf for an hour. Let rest for about 10 minutes, slice and serve with a dollop of sour cream.