Combine coconut, almonds, sugar, and salt in large mixing bowl and mix well. Add zest and ginger and whisk thoroughly to incorporate. Stir in egg whites.
Drop onto parchment-lined baking sheet in 2-tablespoon increments. Bake at 325 degrees for 20-25 minutes until browned but still chewy. Cool on paper for a few minutes, then transfer to wire rack to cool completely.