Wash the meat, dab dry well and cut into thin strips. Wash herbs, shake dry, pluck and chop finely. Peel and halve the onion and cut into fine strips. Mix everything with oil and chill for about 30 minutes.
In the meantime clean and wash the salad and drain well. Cut into fine strips.
Heat a coated pan. Fry the meat together with the marinade for approx. 5 minutes. Season to taste with honey mustard, salt and pepper.
Roast the baguette if necessary and quarter it. Open each piece, but do not cut through and brush with butter. Fill in salad and meat. Wrap half of the baguettes in parchment paper if necessary.