Seitan burger

water 50.0% , mushroom 32.0% , wheat gluten 9.0% , pea flour 4.5% , wheat flour 2.3% , vegetable suet 1.1% , pea fiber 0.6% , Stabiliser 0.3% , pea starch 0.1% , salt 0.1% , dehydrated onion 0.0% , yeast extract 0.0% , water 0.0% , flavouring 0.0% , cracked black pepper 0.0% , onion 0.0% , Preservative 0.0%