Preheat oven to 325° F.
Layer shredded Swiss cheese, canned crab, and chopped green onions in a 9-inch unbaked pie shell.
In a small bowl combine eggs, cream, salt, pepper, grated lemon peel, dry mustard, and mace; mix well. Pour into the pie shell then sprinkle with sliced almonds.
Bake for 45 minutes, or until set Let stand for 10 minutes before serving.Makes 6