Burger King brings back their Portobello Mushroom Swiss Burger

Calling all mushroom lovers: Burger King’s popular Portobello Mushroom Swiss Burger is back! For a limited time only, diners can enjoy this fan favourite elevated in three different ways, as well as a new snack and dessert on the menu.

Plus, they’re launching a vending machine activation where you can nab a plushie keychain when you spend $20 at Burger King in a single receipt—but more on this later.