Start by slicing two thick slices of bread, about 1” thick, then slice one of them in half on a bias from corner to corner.
Next, toast the bread until golden brown and place the square slice of bread in the center of a pan or on a sheet tray lined with parchment paper with the triangle slices on either side of the square.
Place 4 ounces of thick sliced turkey on top of the toasted square.
Generously pour ¼ of the mornay sauce on top of the turkey, completely covering it. You can also cover the triangle slices of toast as well.
Sprinkle 2 tablespoons of parmigiana Reggiano on top of the cheese sauce.
Place the pan or tray on the middle rack in the oven with the broiler on high for 4 to 5 minutes or until the sauce is lightly browned.
Place 2 oven-sliced oven-roasted tomatoes on top of the sandwich along with the 2 slices of bacon crisscrossed on top of that.
Garnish with more finely grated parmigiana, paprika, and chopped fresh parsley.
Repeat the process 3 more times with the remaining ingredients.
Serve the sandwich on a plate or still in the pan.
Notes
Make-Ahead: This hot brown is meant to be eaten as soon as it’s done cooking. If you keep the sauce, cooked bacon, bread, tomatoes, and turkey separate, you can make this up to 2 days ahead.How to Store: It is best to cover the sauce, cooked bacon, bread, tomatoes, and turkey separately. If it is assembled, cover it with plastic and keep it in the refrigerator for 3 days. This recipe will not freeze well.How to Reheat: Place the desired number of hot browns on a sheet tray lined with parchment paper and bake them in the oven at 350° for 8 to 10 minutes or until warm. If you kept the main components of the dish separate, follow the procedures of the recipe for reheating.Feel free to use any artisan bread.It is important to have the sauce, bacon, and tomatoes completely prepped up before assembling this dish so that things run smoothly while cooking.If you start to notice the triangle slices of the bread are browning too quickly while under the broiler while the sauce is melting, remove them so they do not burn.To make all 4 sandwiches at once, assemble them on a sheet tray lined with parchment paper.I used a 10” cast iron skillet to cook the sandwich on.