For such a sandwich, you need to take a French loaf and put slices of bacon, fried fish, lettuce, and tomato slices on it. The sandwich is dressed with mayonnaise sauce.
Toast the loaf slices in a toaster. Fry bacon in a frying pan in a little oil, dry on a paper towel.
Switch on the oven with grill function. Sprinkle the salmon fillet slices with 1/8 teaspoon of pepper. Put the fillets on an oiled baking sheet, skin side down, and place in the oven under the grill, fry until tender, about 10-13 minutes. Remove the skin from the fried fillet and cut the pulp into slices.
While the fish is cooking, prepare the sauce. In a small bowl, combine mayonnaise, lemon juice, dill, and remaining black pepper.
Brush each fried slice of French loaf with 1 tablespoon of mayonnaise sauce and place one lettuce, 2 slices of tomato, 2 slices of fried bacon, and 1/4 of the total amount of fish. Pour the remaining mayonnaise sauce over the red fish sandwiches.