1 cup drained pimento or roasted red peppers, finely chopped
½ cup mayonnaise
2 tablespoons Dijon mustard
2 tablespoons hot sauce
1½ tablespoons dried parsley
1 tablespoon Worcestershire sauce
½ tablespoon lemon juice
¼ yellow onion, finely grated
Kosher salt and freshly ground black pepper, to taste
Four 6-inch focaccia rolls, halved
20 pickled jalapeño slices
2 vine-ripe tomatoes, thinly sliced
Pimento cheese
1 stick unsalted butter, divided
Directions
Make the pimento cheese: In a large bowl, stir all of the pimento cheese ingredients until smooth.
Make the grilled cheese: Preheat the oven to 400° and place a wire rack on a sheet pan. Lay out the bottoms of the focaccia rolls on a cutting board and top each with 5 pickled jalapeño slices. Divide the tomato slices among the bottoms, followed by the pimento cheese, then add the tops of the focaccia rolls, and press to close.
In a large cast-iron skillet, heat 2 tablespoons of the butter over medium heat. Place 2 of the sandwiches in the pan and place a heavy pan on top to weigh them down. Cook until golden, 3 to 4 minutes. Flip the sandwiches, add 2 more tablespoons of butter and cook, replacing the pan on top, until the other sides are golden, 3 to 4 minutes. Transfer the sandwiches to the prepared sheet pan and repeat this process with the remaining sandwiches and butter.
Bake the sandwiches in the oven until the cheese is completely melted, 5 minutes, then cut each in half and serve.