In a medium mixing bowl, combine the nuts, panko, sugar, flour, and salt. Add the melted butter and stir to combine.
Press the mixture into the bottom of a 9 or 10-inch cake, pie, or springform pan as a crust for a cheesecake or cream pie. Bake according to instructions for cheesecake or pie. If baking for a precooked pie filling, preheat the oven to 375 degrees F. Place on the center rack of the oven and bake for 20 to 25 minutes.