Place the barbecue sauce in a bowl and add 2 tablespoons of the pineapple juice.
Stir together and set aside.
Heat 30ml of oil on high in a skillet or a non-stick pan.
Add the defrosted Big Fry Burgers and reduce to medium heat.
Fry for 9 minutes, turning occasionally.
Add the vegan cheese slices then allow them to melt slightly.
Spread 1 tablespoon of sauce on the bottom part of each of the buns.
Cover with lettuce and a Big Fry Burger patty.
Then top with a pineapple ring.
Spread 1 tablespoon of sauce on the inside of the top bun and the top of the burger. Enjoy!