Au restaurant
You should write French with a capital letter, so French restaurant is correct.
restaurant is French, but you pronounce it like restauran. (without the t)restaurant like you
English is the same as French, "restaurant".
Un restaurant francais.
'Un restaurant' is a masculine noun in French.
A seaside restaurant is 'un restaurant de bord de mer' in French.
restaurant français
Mon restaurant (pronounce mon rest-oh-ron)
Restaurant is a French word.
It is a French word, so "un restaurant" (masc.)
"Le Restaurant Francais de Martin" literally.
un restaurant (masc.)