Recipes and Cooking Meatball Sandwiches 5.0 (1) These slow cooker sandwiches are perfect for parties! Top the saucy beef meatballs with plenty of cheese and serve inside hoagie buns. By BHG Test Kitchen BHG Test Kitchen The Better Homes & Gardens Test Kitchen has been in continuous operation for nearly 100 years, developing and testing practical, reliable recipes that readers can enjoy at home. The Test Kitchen team includes culinary specialists, food stylists, registered and licensed nutritionists, and other experts with Bachelor of Science degrees in food science, food and nutrition, or culinary arts. Together, the team tests more than 2,500 recipes, produces more than 2,500 food images, and creates more than 1,000 food videos each year in the state-of-the-art test kitchen. Learn about BHG's Editorial Process Published on June 2, 2011 Print Rate It Share Share Tweet Pin Email Photo: Brie Passano Prep Time: 30 mins Cook Time: 3 hrs Bake Time: 25 mins Total Time: 3 hrs 55 mins Yield: 8 sandwiches Jump to Nutrition Facts Ingredients 1 egg, lightly beaten ⅓ cup fine dry bread crumbs ⅔ cup finely chopped onions (2 small) ½ teaspoon salt ½ teaspoon dried oregano, crushed ½ teaspoon black pepper 1 ½ pound lean ground beef 1 15 ounce can tomato sauce ½ cup chopped green sweet pepper (1 small) 2 tablespoon packed brown sugar 1 tablespoon yellow mustard 1 teaspoon chili powder ¼ teaspoon garlic salt ⅛ teaspoon bottled hot pepper sauce 8 hoagie buns, split and toasted 2 cup shredded mozzarella cheese (8 ounces) Directions In a large bowl stir together egg, bread crumbs, 1/3 cup of the onions, the salt, oregano, and 1/4 teaspoon of the black pepper. Add ground beef; mix well. Shape meat mixture into 32 balls. Arrange meatballs in a single layer in an ungreased 15x10x1-inch baking pan. Bake, uncovered, in a 350°F oven for 25 minutes. Drain off fat. For sauce, in a 3-1/2- or 4-quart slow cooker combine tomato sauce, the remaining 1/3 cup onions, the sweet pepper, brown sugar, mustard, chili powder, garlic salt, the remaining 1/4 teaspoon black pepper, and the hot pepper sauce. Add cooked meatballs, stirring gently to coat with sauce. Cover and cook on low-heat setting for 3 to 4 hours or on high-heat setting for 1-1/2 to 2 hours. Place four meatballs in each bun. Top with some of the cooking liquid and some of the cheese. Rate it Print Nutrition Facts (per serving) 724 Calories 28g Fat 84g Carbs 36g Protein Show Full Nutrition Label Hide Full Nutrition Label Nutrition Facts Calories 724 % Daily Value * Total Fat 28g 36% Saturated Fat 11g 55% Cholesterol 99mg 33% Sodium 1504mg 65% Total Carbohydrate 84g 31% Protein 36g *The % Daily Value (DV) tells you how much a nutrient in a food serving contributes to a daily diet. 2,000 calories a day is used for general nutrition advice.