[psini]

I don't know your french level but perhaps you read your quote too fast because it says: "Mets qui vient après les hors-d'œuvre et AVANT le plat principal". So the "entrée" is the dish that comes BEFORE the main dish.

[CRConrad]

Perhaps you read GP's quote too fast? Because it ends with:

>>>> Par extension. Plat principal. Un repas composé d’un hors-d’œuvre, une entrée et un dessert.

"By extension. Main dish. A meal consisting of an appetizer, an entrée and a dessert."

There the "entrée" is clearly the "main dish".

[psini]

Mea culpa, I did go over it. I guess as a native speaker the idea of calling a "Plat Principal" an "Entrée" is just so foreign to me I just cannot accept it... :-) Perhaps it is a regional difference