Heat a tablespoon of olive oil in a large skillet over medium heat. Add the ground chicken and cook for 5 to 7 minutes, breaking it up with a spoon as it cooks until the chicken is fully browned and cooked through.

Add chopped onion, chopped garlic, and diced bell pepper to the skillet with the chicken. Sauté for 3 to 4 minutes, until the vegetables are soft and fragrant.

Stir in the tomato sauce, tomato paste, Worcestershire sauce, Liquid Smoke, Cajun seasoning, onion powder, garlic powder, salt, and pepper. Mix everything together until well combined.

Lower the heat and let the mixture simmer for 8 to 10 minutes, stirring occasionally, until the sauce thickens to your liking. If it gets too thick, add a splash of chicken broth to thin it out.

Lightly toast your hamburger buns in the oven or on a skillet. Spoon a generous amount of the Cajun chicken mixture onto the bottom half of each bun.

Top with the other half of the bun. Garnish with chopped green onions if desired. Serve hot and enjoy the bold flavors!