This veggie burger is different. Honestly. If you find that most veggie burgers are dry and flavorless, give Chef John’s mushroom burger a chance. It’s an honest-to-goodness juicy and delicious meatless burger. Chef John sautés mushrooms with a little salt, garlic, onion, and oregano. Mix the mushrooms with breadcrumbs, rolled oats, and shredded Parmesan cheese. The key is to let the mixture sit before forming the patties. Then fry them up in a little olive oil. Watch the video, then get Chef John’s recipe for Mushroom Veggie Burger. The mushrooms really give these burgers a savory meaty flavor.