Chicken Vegetable Creole

Ingredients

• Nonstick cooking spray
• 1 pound boneless, skinless chicken breasts, cut into large chunks
• 1 large onion, chopped
• 1 (14½-ounce) can diced tomatoes
• ⅓ cup tomato paste
• 2 stalks celery, chopped
• 1½ teaspoons garlic powder
• 1 teaspoon onion powder
• ½ teaspoon salt
• ¼ teaspoon red pepper flakes
• ⅓ teaspoon ground black pepper
• 1½ cups broccoli florets