In a large skillet over medium heat, add olive oil. Once hot, add the chopped onion and bell pepper. Sauté for about 5 minutes, or until the vegetables are soft and translucent.

Add the minced garlic and cook for an additional minute, stirring frequently to prevent burning.

Increase the heat to medium-high and add the ground chicken to the skillet. Break it apart with a wooden spoon. Sprinkle the Cajun seasoning over the chicken and cook until browned and fully cooked, about 6-8 minutes.

Stir in the tomato sauce, Worcestershire sauce, and brown sugar. Reduce heat to low and let the mixture simmer for about 5-7 minutes, allowing the flavors to meld. Season with salt and pepper to taste.

While the mixture simmers, toast the hamburger buns in a toaster or oven until golden brown.

To serve, spoon the Cajun chicken mixture onto each toasted bun. Add any optional toppings such as pickles, cheese, or parsley, if desired.

For a spicier version, consider adding diced jalapeños to the mixture or serving with hot sauce.

This recipe can be made ahead of time and reheated for an easy meal.

Leftover sloppy joe filling can be stored in the refrigerator for up to three days.