1 c. Cheddar cheese, grated
1 c. Swiss cheese, grated
2 eggs
1/2 c. milk
2/3 c. sliced mushrooms
Dash of salt and pepper
1/2 tsp. garlic salt
1 (9 inch) baked pie shell

Mix ingredients and pour in pie shell. Bake at 350 degrees for 25-30 minutes.