Preheat oven to 425°. Spray a baking sheet with cooking spray. Set aside.
In a small bowl, beat egg with a fork until well combined. In another bowl, put your flour, and in a third bowl, place your bread crumbs. Toss the breadcrumbs with garlic powder and Parmesan cheese, and set aside.
Dip the zucchini sticks into the flour (shake off the extra flour) then dip it in the egg, and then into the bread crumb mixture. Make sure all sides get coated well. Place the sticks on the prepared baking sheet.
Bake at 425° for about 20 minutes, or until golden brown and crispy.
To make the creamy BBQ Sauce, just mix BBQ Sauce and Mayo. Use the same amount of BBQ sauce as mayo! It is that simple!