Preheat oven to 350 F static or 325 F convection.
Oil a jelly-roll pan, or cookie sheet with sides, approximately 15-10 inches.
In a small bowl, combine the hot water with ONE tablespoon of the flax seed meal. Set aside.
If making the topping, combine the cream cheese and sugar in a small bowl, stirring until well-mixed. Set aside.
In a medium-sized bowl, mix together the Nearly Normal All Purpose Flour, spice, baking powder, baking soda and ONE tablespoon of the flax seed meal.
In a large mixing bowl, beat the butter and sugars until a crumbly meal is formed. Add in the eggs, pumpkin and zucchini and beat until well-mixed. Stir in the flax seed-water mixture.
Gradually beat the dry ingredients into the large mixing bowl, incorporating all the ingredients until thoroughly combined. Spread into the prepared pan and top with the topping, if desired, by spooning dollops onto the top of the batter, then cutting through them up and back the length of the pan with a butter knife to cut the topping into the bars.
Bake in the preheated oven for approximately 20-25 minutes, or until the bars are pulling away from the sides of the pan and they spring back when lightly touched.