01 -
Heat olive oil in a large skillet over medium heat. Add the thinly sliced red onion and cook until softened, about 2 minutes. Stir in the minced garlic and cook until aromatic, approximately 30 seconds.
02 -
Add shredded roasted chicken, smoked paprika, Worcestershire sauce, and BBQ sauce to the skillet. Stir thoroughly to coat all ingredients and cook until the mixture is fully heated through, 2 to 3 minutes.
03 -
In a microwave-safe bowl, combine unsalted butter, minced garlic, and finely chopped parsley. Microwave until the butter is melted and the herbs are evenly distributed.
04 -
Arrange all slices of bread on a clean surface. Spread a generous layer of the melted garlic butter mixture over each slice, ensuring even coverage to the edges.
05 -
Turn the bread so the buttered side faces outward. On half of the slices, lay one slice of Havarti cheese, distribute the BBQ chicken mixture evenly, then top each with a second slice of Havarti. Close each sandwich with a remaining slice of bread, buttered side out.
06 -
Place sandwiches in a large non-stick skillet over medium heat. Grill each side until golden and crisp, 3 to 5 minutes per side. Adjust heat to medium-low after flipping, grilling until the cheese is fully melted and both bread surfaces are deep golden.