Oh! It seems my marvelous mind does work wonders, like always.

( with her request, the shopkeeper doesn't go against it since what's written on the board is what he goes by. it only takes a few moments for her to receive a beverage with the crispy flakes of lettuce that she has been looking for, the drink seems to have quite a chill on top and must be refreshing in this unbearable heat. )

It looks pleasant, even the coloration brings out a radiant appearance. I wonder if it'll taste the same, though it should if you like the ingredients mixed within it!