Preparation:
Heat oven to 475 degrees. Prepare pastry. Ease into tart pan, 9 X 1 inch, or pie plate, 9 X 1-1/4 inches. Bake as directed; cool.Reduce oven temperature to 350 degrees. Heat margarine in 10-inch skillet over medium heat. Cook leeks and mushrooms in margarine about 5 minutes. Spread in tart pan. Sprinkle with cheeses. Beat remaining ingredients. Pour over cheeses.
Bake about 35 minutes or until set. |