People sometimes mistake us for hardcore vegetarians since we eat so many vegetables. In truth, we do indulge in a juicy beef burger once in a while. But for our everyday cooking, we like this burger (almost) as much. This messy sandwich uses the meatiest of all vegetables: the Portobello, a thick juicy mushroom that’s not at all like the slimy canned ones I came to fear in childhood. Grilled with a bit of garlic and balsamic, a smoky umami infuses the entire mushroom. To top this special burger, onions are reduced to a dark, sweet caramel mess that tastes like pure gold. You can customize the other toppings to your liking: here we’ve used a pile of vegetables and smoked cheese. The resulting sandwich is gigantic and a bit messy to handle, but the experience of eating it can’t be beat.
GF* For gluten-free, use gluten-free buns.
V* For vegan, omit the cheese or use a vegan variety.
—Sonja & Alex Overhiser
Excerpted from A Couple Cooks | Pretty Simple Cooking: 100 Delicious Vegetarian Recipes to Make You Fall in Love with Real Food by Sonja and Alex Overhiser. Copyright © 2018. Available from Da Capo Lifelong Books, an imprint of Perseus Books, LLC, a subsidiary of Hachette Book Group, Inc.