Oven Omelet - cooking recipe

Ingredients

1/4 c. margarine, melted
18 eggs, beaten
1 c. sour cream
1 c. milk
2 tsp. salt
1/4 c. onion, chopped
2 c. Cheddar cheese, shredded
1 1/2 to 2 c. ham, cubed
1 small can mushrooms, sliced

Preparation

Heat oven to 325\u00b0.
Melt margarine and coat bottom and sides of a 9 x 13-inch glass pan.
Mix remaining ingredients together. Pour into pan.
Bake about 1 hour and 15 minutes.
Cut into squares.
Serves 6 to 8.