Melt 5 tablespoons butter in a skillet over medium heat. Place 15 mini phyllo shells on a baking sheet and brush with 1 tablespoon of the melted butter. Bake at 350 degrees F until just golden, 10 minutes. Meanwhile, add 1/4 cup chopped pistachios, 1/4 cup each honey and sugar, 1 teaspoon lemon juice, 1/4 teaspoon lemon zest, 1/4 teaspoon allspice and a pinch of salt to the butter in the skillet; cook, stirring until thick, 5 minutes. Divide among the shells and sprinkle with grated chocolate. Let cool.