Slow-cooker Sloppy Joes

INGREDIENTS

• 1 1/2 pounds lean ground beef
• 1 (16-oz.) package ground pork sausage
• 1 small onion, chopped
• 1/2 medium-size green bell pepper, chopped
• 1 (8-oz.) can tomato sauce
• 1/2 cup water
• 1/2 cup ketchup
• 1/4 cup firmly packed brown sugar
• 2 tablespoons cider vinegar
• 2 tablespoons yellow mustard
• 1 tablespoon chili powder
• 1 tablespoon Worcestershire sauce
• 1/2 teaspoon salt
• 1/4 cup all-purpose flour
• 8 hamburger buns, toasted