This Turkey Grilled Cheese with Gruyere and Caramelized Onion is a delicious twist on the classic grilled cheese sandwich. The combination of tender turkey, melty Gruyere cheese, and sweet caramelized onions creates a flavor-packed sandwich that is sure to satisfy. The turkey adds a savory element, while the Gruyere cheese brings a rich and creamy texture. The caramelized onions add a touch of sweetness and depth of flavor. This sandwich is perfect for a quick and easy lunch or dinner.