Heat olive oil in a large skillet over medium heat. Add chopped onion and bell pepper. Cook until softened, about 5 minutes. Stir in minced garlic; cook for 1 minute more.
1 tbsp olive oil, 1 medium onion, 1 bell pepper (any color), 2 cloves garlic
Add ground chicken to the skillet. Break it apart with a spoon and cook until browned, about 7-8 minutes. Drain any excess grease.
1.5 lbs ground chicken
Stir in Cajun seasoning, smoked paprika, cayenne pepper (if using), dried thyme, and black pepper. Cook for 1 minute, allowing the spices to bloom.
2 tbsp Cajun seasoning, 1 tsp smoked paprika, 1/2 tsp cayenne pepper, 1/2 tsp dried thyme, 1/4 tsp black pepper
Pour in tomato sauce, chicken broth, Worcestershire sauce, brown sugar, and apple cider vinegar. Stir to combine.
1 cup tomato sauce, 1/2 cup chicken broth, 2 tbsp Worcestershire sauce, 1 tbsp brown sugar, 1 tbsp apple cider vinegar
Bring the mixture to a simmer. Reduce heat to low, cover, and let simmer for 15-20 minutes, stirring occasionally, to allow the flavors to meld and the sauce to thicken.
Spoon the Easy Cajun Chicken Sloppy Joes mixture onto hamburger buns. Add optional toppings like shredded cheese, coleslaw, or diced green onions. Enjoy immediately!
6 hamburger buns, shredded cheese, coleslaw, diced green onions
