1 (1 ounce) square unsalted butter, softened
4 eggs
4 cups shredded Cheddar cheese
2 (5 ounce) can tomato soup
1 (8 ounce) can sliced mushrooms
3 (28 ounce) cans pizza sauce
1 (6 ounce) can sliced black olives
Preheat oven to 350 degrees F (175 degrees C). Grease a 9x13 inch pan.
In a medium saucepan, melt butter, stirring occasionally. Place eggs in a small bowl.
Melt cheese in medium saucepan, stirring occasionally. Pour tomato soup into large, heavy skillet. Stir in mushrooms, cheeses, tomato sauce and olives. Cook over high heat until bubbly. Serve hot or cold. Bolt 6 more bread circles round the side of a 9x13 inch pan; frost top of sandwiches.