Ingredients Meat & Poultry Beef Recipes Ground Beef Recipes Meatloaf Sandwiches 3.7 (35) 4 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 February 22, 2021 Print Share Share Tweet Pin Email Prep Time: 15 mins Total Time: 1 hrs 15 mins Servings: 8 Sharp cheddar and horseradish give our meatloaf sandwiches extra punch. Ingredients 1 tablespoon vegetable oil 1 medium onion, diced small 2 tablespoons tomato paste 1 ½ pounds ground beef chuck (10 percent fat) 1 cup roughly crushed saltine crackers (about 15 crackers) 1 cup coarsely grated sharp cheddar (3 ounces) 3 large eggs 1 tablespoon plus 2 teaspoons prepared horseradish 1 tablespoon Worcestershire sauce ½ teaspoon coarse salt ¼ teaspoon ground pepper Toasted country-style bread, lettuce, sliced dill pickles, and ketchup, for serving Directions Preheat oven to 375 degrees. In a small skillet, heat oil over medium; add onion and cook until softened, about 5 minutes. Add tomato paste and cook, stirring constantly, until brick-red in color and fragrant, 3 minutes. In a large bowl, combine beef, onion mixture, crackers, cheese, eggs, horseradish, Worcestershire, salt, and pepper. On a parchment-lined baking sheet, use your hands to form mixture into a 9-inch loaf. Bake until cooked through, about 40 minutes. Let rest 15 minutes before cutting into thick slices. To serve, place meatloaf slices between bread, topped with lettuce, pickles, and ketchup. Print