Ingredient:

• 1 pound ground beef
• 1 large onion, chopped
• 2 cans (16 ounces each) kidney beans, rinsed and drained
• 2 cans (14-1/2 ounces each) diced tomatoes, undrained
• 1 celery rib, diced
• 1 teaspoon salt
• 1 teaspoon pepper
• 1/2 teaspoon chili powder
• 1/4 to 1/2 teaspoon crushed red pepper flakes
• Optional: Shredded cheddar cheese, sour cream and chopped green onions