Fast Strawberry Mousse
["1 (10 oz.) pkg. frozen sweetened strawberries", "1/2 pt. sour cream", "1/2 c. sugar", "1 tsp. vanilla", "2 lb. walnut meats, chopped fine in blender", "1 c. sugar", "1 1/2 tsp. cinnamon", "1/2 tsp. nutmeg", "1 lb. melted butter", "1 lb. filo dough (tissue thin pastry sheets; can be purchased frozen)"]
["Chop walnuts and mix with sugar and spices.", "Grease an 11 x 16-inch pan with melted butter.", "Place 4 filo in pan, brushing each with melted butter.", "Sprinkle with thin layer of nut mixture. Cover with 3 filo, brushing each with melted butter.", "Continue this procedure until all filo and mixture is used.", "Finish with 4 filo on top, brushing each with butter.", "Cut into about 75 small squares (before baking).", "Bake in slow oven (300\u00b0) for 1 hour or longer, until lightly brown.", "Remove from oven and cool.", "Pour warm syrup over pastry."]
["strawberries", "sour cream", "sugar", "vanilla", "walnut meats", "sugar", "cinnamon", "nutmeg", "butter", "filo dough"]