In a mixing bowl, combine flour, shredded coconut, and sugar for the crust. Stir in melted butter until well combined. Press mixture into the bottom of a greased baking pan.
Bake crust in preheated oven for 10-12 minutes, or until lightly golden.
In another bowl, whisk together sugar, flour, and baking powder for the filling. Add beaten eggs, lemon juice, and lemon zest. Mix until smooth.
Pour filling over the baked crust. Return to oven and bake for an additional 15-18 minutes, or until filling is set.
Allow to cool completely before cutting into bars. Enjoy!