- 8 hamburger buns, split
- 2 tablespoons butter
- 1/2 onion, chopped
- 2 tablespoons tomato paste
- 2 cloves garlic, minced
- 3 tablespoons Thai sweet chili sauce, or more to taste
- 1 tablespoon Worcestershire sauce
- 1 teaspoon white sugar
- 2 pounds boneless, skinless chicken breast, or more to taste, cut in bite-size pieces
- 2 tablespoons olive oil
- 3 tablespoons sweet pickle relish
- 3 tablespoons lemon juice
- 2 tablespoons honey
- 2 cups coleslaw mix
- Set oven rack about 6 inches from the heat source and preheat the oven's broiler. Arrange hamburger buns, cut-sides facing up, in a single layer on a baking sheet.
- Toast buns under the preheated broiler until toasted, 30 to 60 seconds.
- Melt butter in a large skillet over medium heat. Cook and stir onion, tomato paste, and garlic in hot butter until onion is softened, about 5 minutes. Stir chili sauce, Worcestershire sauce, and sugar into onion mixture.
- Stir chicken and olive oil into the skillet; cook and stir until chicken is no longer pink in the center, 5 to 10 minutes.
- Whisk relish, lemon juice, and honey together in a large bowl; add coleslaw blend and toss to coat.
- Spoon chicken mixture into toasted buns and top with coleslaw.