Le repas du jour.
In French, the phrase "large portion" is called "grande partie" and "large meal" is "repas copieux".
the typical phrase in French is 'bon appétit'
It means 'have a nice meal' in French. Note this is the English section.
French people do not have a special meal or special recipes on Bastille Day. Some villages may organize a communal meal and a ball, but it is only a prelude to the fireworks, not an event on itself.
enjoy your day
The phrase "breakfast is the most important meal of the day" is often attributed to nutritionist and author Adelle Davis.
Go get a French phrase book.
petit déjeuner.
The likely word sought is the French phrase bon appetit(bon appétit,"enjoy your meal").
This is the French phrase "have a good meal" or "enjoy your meal" (literally good appetite).It is spelled "bon appetit" (pronounced bawn ah-peh-TEET).
joyeuse fête du Travail is the phrase in French. It says happy May day in french.
There is nothing actually incorrect about the phrase "lunch meal", and a rapid search will find a number of uses of the phrase. There is, however, no good reason for using it, as lunch is and has always been a meal. The phrase is redundant and not idiomatic. Use of this phrase might give the erroneous impression that the word "lunch" refers to a time of day, rather than a meal.