1 lb. grated cheese
1 stick butter
1 c. half and half
1 doz. eggs, beaten
3 tsp. dry mustard
Salt and pepper
Optional: Green pepper, bacon, mushrooms, onion, cubed ham

Spread cheese and cubed butter in bottom of 9 x 13 baking dish. Pour half and half over mixture. Mix eggs, dry mustard, salt and pepper with desired additions. Pour over cheese and butter. Bake at 350 degrees for 35 to 45 minutes.