Food & Cooking Recipes Appetizers Portobello, Broccoli, and Red-Pepper Melts 4.0 (78) 9 Reviews By Martha Stewart Test Kitchen Martha Stewart Test Kitchen The recipes developed by our test kitchen team have undergone a rigorous process of development and testing, ensuring that every element is optimal, from ingredient amounts to method and cooking time. This process includes triple-testing recipes to ensure they meet our high standards. The many stellar cooks and food editors who have been part of our team include Sarah Carey, Lucinda Scala Quinn, Jennifer Aaronson, Shira Bocar, Anna Kovel, Greg Lofts, Riley Wofford, Lauren Tyrell, and Lindsay Leopold. Editorial Guidelines Updated on June 12, 2017 Print Rate It Share Share Tweet Pin Email Prep Time: 30 mins Total Time: 30 mins Servings: 4 The broiler works double time for these knife-and-fork sandwiches, caramelizing the veggies, then melting the Gouda. Ingredients 1 small head broccoli, cut into small florets (stalk discarded) 1 tablespoon olive oil Coarse salt and ground pepper 4 portobello mushrooms (stems removed), sliced ½ inch thick 2 red bell peppers (ribs and seeds removed), sliced ½ inch thick ¼ cup light mayonnaise 1 small garlic clove, crushed through a press 4 thick slices country bread 4 ounces Gouda cheese, thinly sliced Directions Heat broiler, with rack set 4 inches from heat. On a rimmed baking sheet lined with aluminum foil, toss broccoli with oil; season with salt and pepper. Broil, tossing once or twice, until broccoli begins to char, 4 to 6 minutes. Add mushrooms and bell peppers to sheet; season with salt and pepper, and toss to combine. Broil, tossing once or twice, until vegetables are tender, 8 to 10 minutes more; set aside. Meanwhile, in a small bowl, combine mayonnaise and garlic; season with salt and pepper. Place bread on a work surface. Dividing evenly, spread with mayonnaise mixture, and top with vegetables, then cheese. Place on baking sheet, and broil until cheese is melted and lightly browned, 2 to 4 minutes. Rate it Print