Homemade Vegan Beet Seitan Burgers - No Steam Method

Ingredients

• 2 cloves garlic
• 1 teaspoon dried thyme
• 2 teaspoons paprika
• 2 tablespoons tomato puree (tomato paste)
• 1 1/2 teaspoon chilli powder
• 1 red onion, cut into thick slices or wedges
• 3 large cooked beets, cut into wedges
• 2 tablespoons peanut butter (or other nut butter)
• 4 tablespoons porridge oats (rolled oats)
• 200g (1 2/3 cups) vital wheat gluten (more if needed)
• a good pinch of salt and black pepper