In a food processor, whiz together the tofu, tomato paste, oil, hickory smoke, mustard, garlic powder, onion powder and spike. Set aside in a bowl.
Then, whiz together the oats and sunflower seeds to a fine meal, then add to the bowl with the tofu mixture. Grind the seitan in the same food processor and add to the bowl. Add the remaining ingredients to the tofu mixture and mix well.
Form into 12 burger patties and place on an oiled baking sheet. Bake at 180C/350F until cooked, about 35-45 minutes.