Image 1 of 2 Image 2 of 2 Mushroom Burger $18.00 Hi Protin plant-based burger chock full of mushrooms for that meaty texture and the taast for more. Lip-smacking good. Quantity: Add To Cart Added! Hi Protin plant-based burger chock full of mushrooms for that meaty texture and the taast for more. Lip-smacking good.