Place meat in slow cooker; add remaining ingredients, except hamburger buns. Slow Cooker BBQ Beef Sandwiches. Plus, we love the fall apart tender meat bathed in sauce. Place the cooked meat, onion, garlic, celery, salt, black pepper, cider vinegar, mustard, brown sugar, and ketchup into a slow cooker, and stir to combine. Place the cooked meat, onion, garlic, celery, salt, black pepper, cider vinegar, mustard, brown sugar, and ketchup into a slow cooker, and stir to combine. Perfect for busy nights! Drain excess grease. Drain excess grease. Place ground beef in a large skillet over medium heat, and cook until brown, breaking up the meat as it cooks, about 15 minutes. The mix of the ketchup, bbq sauce, beef broth and Worcestershire sauce is the perfect combination to add just enough sweetness. Heat the olive oil in a large skillet over medium heat. Set the cooker on Low, and cook for 6 to 8 hours. Brown meat and drain. Serve on hamburger buns. Slow Cooker Sandwiches are quick, easy and feed a crowd. BBQ Beef Sloppy Joes. DIRECTIONS. I'm always busy working on lots more recipes, so be sure to check back soon for more or be kept up to date by subscribing to our mailing list or following us on social media. The slow cooker shredded beef version of this recipe was a resounding and immediate hit on the site so I just had to share a sloppy joe version with you all as we are navigating through these 40 sloppy joe recipes.. You can find all the latest slow cooker recipes that we have right below. Place ground beef in a large skillet over medium heat, and cook until brown, breaking up the meat as it cooks, about 15 minutes. Slow Cooker Beef Barbecue is a simple and easy all-day Crock Pot dinner that comes together with only 5 minutes of prep! These Slow Cooker BBQ Beef Sandwiches are fall apart tender and taste AMAZING thanks to the homemade bbq seasoning rub. Steps to Make It. Welcome to Slow Cooking Perfected. Cover and cook on low for 6 to 8 hours.