1/2 lb. fresh mushrooms, chopped
3 tbsp. butter
1/2 c. dry seasoned bread crumbs
6 oz. shredded Swiss cheese
3 tbsp. flour
3 eggs, slightly beaten
2/3 c. mayonnaise
10 oz. frozen chopped spinach, thawed and drained
1/2 tsp. salt
Dash of pepper
2 tbsp. chopped parsley
1 sm. onion, chopped

Saute mushrooms in butter. Stir in bread crumbs and mix well. Press mixture evenly over sides and bottom of greased 9-inch pie plate.

In medium bowl toss cheese with flour. Add remaining ingredients and mix well. Pour into crust. Bake 40 minutes in 350 degree oven.