To Double
Double all ingredients. Mix crust ingredients as directed; press onto bottom of 13x9-inch baking dish. Top with prepared filling. Bake at 350°F for 25 to 30 min. or until filling is set in center. Makes 12 servings.
Substitute
Substitute 4 beaten eggs for the egg product.
Make it Easy
Use a food processor to finely chop the mushrooms.