Chicken fillet cut into slices, salt, fry in butter or vegetable oil. For taste, put a clove of garlic lightly crushed with a knife into the oil. Cook for 1-2 minutes on each side, basting the chicken with oil from the pan (for juiciness).
Rinse the lettuce, tear it up.
Wash the tomato and cut into thin slices. You will need 3-4 slices for one sandwich.
Cut red onion into rings.
Slice the cheese.
Prepare the sauce: in a dry frying pan, fry the flour until golden brown, constantly stirring, add the cream. Cook on low heat for 2-3 minutes, add salt, garlic (either granulated or very finely chopped). Remove from heat, let cool and thicken.
Fry the slices of bread in a dry frying pan on both sides until golden brown.
“Building a sandwich”: spread sauce on each slice of bread, put lettuce, chicken, tomatoes, cheese on one of them in sequence.
Place in the microwave to melt the cheese.
Cover with a second slice of bread and serve. Our sandwich is ready!