Ingredients Meat & Poultry Beef Recipes Ground Beef Recipes Open-Faced Burgers with Horseradish Sauce and Green Beans 3.8 (5) 3 Reviews By Martha Stewart Editors Martha Stewart Editors Facebook Instagram Twitter Website An article attributed to "Martha Stewart Editors" indicates when several writers and editors have contributed to an article over the years. These collaborations allow us to provide you with the most accurate, up-to-date, and comprehensive information available.The Martha Stewart team aims to teach and inspire readers daily with tested-until-perfected recipes, creative DIY projects, and elevated home and entertaining ideas. They are experts in their fields who research, create, and test the best ways to help readers design the life they want. The joy is in the doing. Editorial Guidelines Updated on June 12, 2017 Print Share Share Tweet Pin Email Prep Time: 30 mins Total Time: 30 mins Servings: 4 Cook patties first, then -- in the same skillet -- saute onion and green beans. Place the burgers on toast with a creamy sauce, and dinner's ready with only one pot to clean up. Ingredients 1 ½ pounds ground beef sirloin Coarse salt and ground pepper 1 tablespoon olive oil 1 pound green beans, stem ends removed 1 medium red onion, halved and thinly sliced ⅓ cup light mayonnaise ¼ cup fresh parsley, chopped 1 tablespoon prepared white horseradish 4 thick slices tomato 4 thick slices country bread, toasted Directions Form beef into four patties; season with salt and pepper. In a large skillet, heat oil over medium. Add patties; cook 6 to 8 minutes per side for medium. Transfer to a plate, and tent with aluminum foil; set aside. To skillet, add green beans, onion, and cup water; season with salt and pepper. Cover, and cook, tossing occasionally, until beans are crisp-tender, 5 to 7 minutes. Uncover, and cook, tossing, until water has evaporated, about 2 minutes. Make sauce: In a small bowl, stir together mayonnaise, parsley, and horseradish; season with salt and pepper. Place tomato slices and burgers on toast; top with horseradish sauce, and serve with green beans. Cook's Notes Tangy horseradish sauce is a piquant alternative to ketchup or mustard. We used parsley in the sauce, but any fresh leafy herb will taste equally good. Print