Caramelised onion, mushroom & cheese-loaded vegan burger

1. Place two large frying pans over a medium heat. Cook the burgers in one of the pans according to pack instructions.

2. Meanwhile, heat 1 tbsp oil in the other frying pan over a high heat. Add the red onion and allow to sizzle for a couple of minutes, stirring often, until starting to brown. Reduce the heat to low. Season, then add the onion marmalade and 2-3 tbsp boiling water. Stir together and allow the marmalade to melt. Scrape the mixture out of the frying pan and into a bowl, then set aside.

3. Return the unwashed pan to a medium heat. Add 1 tbsp oil and the mushrooms and allow them to cook until browned. Remove from the heat and season.

4 When the burgers are almost cooked, lay a vegan slice over each one and allow it to melt. Toast the cut sides of the buns and spread a little vegan mayo on both sides. When ready to assemble, place the burger on the bun base and top with the sautéed mushrooms, onions and a handful of rocket. Delicious served with fries and extra mayo or ketchup for dipping.