Foodie Friday: Mushroom Burger July 25, 2014 by rachelauthorbarnard in Foodie Fridays and tagged avocado, burger, mushroom burger, pickle Using Portabella Mushrooms as buns (lightly toasted in the oven) you can make a great low carb/gluten free burger and you can even add bacon and avocado! Share this:FacebookTwitterLike this:Like Loading... Related