In a small bowl, add soy sauce, chili powder, hot sauce, cumin, liquid smoke, garlic powder, onion powder, and pepper. Whisk to combine. Pour over tempeh; stir until evenly coated. Set aside for 5-10 minutes.
Place corn tortillas on a baking sheet. Lightly brush with oil. Bake for 10 minutes, until crispy and golden.
In a skillet over medium heat, add the tempeh. Let it cook on each side for 4-5 minutes, until browned. Flip the chunks; cook for another 3-4 minutes.
While the tempeh and tortillas are cooking, make the slaw. Add red cabbage, mango, cilantro, lime juice, vinegar, agave, and salt to a medium bowl. Stir to combine.
Serve by scooping the tempeh onto the tortillas, then top with slaw and any other desired toppings.