Slow Cooker Cowboy Beef and BBQ Bean Sandwiches

2    medium onions, sliced

2-pound beef boneless arm roast, trimmed of fat

1      can (16 ounces) baked beans

1/4   cup barbecue sauce

1      teaspoon finely chopped jalapeño chili

12    onion kaiser rolls, split

1 1/2   cups prepared coleslaw

• 1 Place onions in 3- to 4-quart slow cooker. Add beef. Top with baked beans and barbecue sauce.
• 2 Cover and cook on low heat setting 8 to 10 hours.
• 3 Remove beef from cooker; place on cutting board. Shred beef, using 2 forks. Return beef to cooker and mix well. Stir in chili. To serve, place 1/2 cup beef mixture in each roll and top with 2 tablespoons coleslaw.