French dressing recipe at the following link https://snapguide.com/guides/prepare-basic-french-vinaigrette. One important point is that each ingredient is prepared and seasoned separately.
Boil and peel the quail eggs
Peel and season tomatoes
French string beans
Over look of the prepared ingredients
Flake the canned tuna and season with some vinaigrette. Put in the middle. Then arrange all the ingredients as desired