For the sandwiches with chicken meat first pound the chicken meat thinly drizzle bread with balsamic cream fry chicken meat in pan and remove. Cut onion into rings and fry in the frying residue.
Then put on the slice of bread first lettuce leaf, then sauce, then roasted onion, chicken meat and at the end the cheese and divide into four parts.
On the bread with chicken put a dab of ketchup, etc. as desired.