1. Slice the tofu into 1/4 inch slices.
2. Put the tofu on a plate or in a shallow bowl and cover with the barbecue sauce. Let it marinade for 5-10 minutes.
3. Warm the oil in a pan over medium heat. Add the marinated tofu and a little extra sauce. Cover and cook until it is warm.
4. Serve on a whole grain hamburger bun with all of the fixings.