Preheat oven to 300°.
Line 2 baking sheets with parchment paper; secure with masking tape.
Lightly spoon flour into a dry measuring cup; level with a knife. Place flour and nuts in a food processor; pulse 10 times or until mixture resembles coarse meal. Reserve 1 tablespoon flour mixture in food processor; set remaining flour mixture aside. Add ginger to food processor; pulse 8 times or until finely minced. Stir into remaining flour mixture; set aside.
Place egg whites in a large bowl, and beat with a mixer at high speed 1 minute or until soft peaks form. Beating at high speed, gradually add the sugar and honey; beat 4 minutes or until thick and glossy. Gently fold in flour mixture and rind. Drop dough by level tablespoons 2 inches apart onto prepared baking sheets. Bake at 300° for 18 minutes or until set. Remove from baking sheets, and cool on a wire rack.