Chili Burgers

Ingredients

• 1 pound ground beef
• 1 can (15 to 16 ounces) kidney beans, rinsed and drained
• 1 can (10-3/4 ounces) condensed tomato soup, undiluted
• 1 cup chopped celery
• 1/2 cup chopped green pepper
• 1/2 cup chopped onion
• 1/4 cup ketchup
• 1 tablespoon brown sugar
• 1 teaspoon chili powder
• 1/2 teaspoon ground mustard
• 1/2 teaspoon salt
• 1/4 teaspoon pepper
• 1/8 teaspoon cayenne pepper
• 1/8 teaspoon garlic powder
• 12 hamburger buns, split