1. To make Sliders: Cut tofu into 8 slices lengthwise; halve slices to make 16 pieces. Transfer to baking dish. Whisk together soy sauce, sugar, oil, and cornstarch in bowl. Pour over tofu, cover, and chill 1 hour.
2. To make Slaw: Whisk together soy sauce, mayonnaise, peanut butter, sugar, vinegar, oil, garlic, pepper, and cayenne (if using) in bowl. Stir in carrots, zucchini, and peanuts. Chill.
3. Preheat oven to 375°F Coat baking sheet with cooking spray. Drain tofu, and transfer to prepared baking sheet. Bake 25 minutes. â€¨Flip, and bake 20 to 25 minutes more, or until crispy. Fill buns with 1 tofu slice and 2 Tbs. Slaw.