In medium bowl, combine zucchini, lemon juice, sweetener, cinnamon and nutmeg until well blended. For a stronger apple taste, stir in apple extract too. Pour mixture into a greased 9 x 9-in. baking dish.
For topping, combine pecans, almond flour, oat fiber, sweetener and cinnamon in a bowl then cut in butter until crumbly. Sprinkle over the zucchini mixture.
Bake at 350 F for 45-50 minutes or until zucchini is tender.
