We know: Portobello mushrooms are not steak. Still, they often show up on menus as the token vegetarian option for a good reason. They're thick, have a rich flavor, and can stand up to marinating and roasting or grilling without wilting the way some other vegetables do, which makes them the ideal filling for meatless sandwiches. They take just 12 minutes to brown in a 375-degree oven.
Get the recipe: Roasted Portobello Mushrooms