Hamburg Casserole - cooking recipe

Ingredients

2 Tbsp. butter
2 sliced onions
1 lb. ground beef
1 c. tomato soup
1 1/2 c. canned corn
1 c. mashed potatoes
1 beaten egg yolk

Preparation

Melt butter in pan. Saute meat and onion until brown. Add soup and corn. Mix thoroughly. Put in a greased baking dish. Cover with potatoes. Brush top with egg yolk. Bake at 450\u00b0 until brown.