Preheat oven to 450 degrees F.
Pour egg substitute into a medium bowl. Add okra and toss to combine. In a large resealable plastic bag, combine both types of bread crumbs, salt, and pepper. Shake to combine well. Add the okra and egg substitute mixture to the bag and shake until coated.
Place a wire rack on top of a cookie sheet. Arrange okra on rack and bake until crisp, about 10 minutes.