Is there a different word for chef? I normally use cook and chef as synonyms.
My hard copy Langenscheidt Vietnamese dictionary lists "bếp trưởng" for chef, "đầu bếp" for cook in restaurant or hotel and" người nấu ăn" for plain old cook.
The first one makes sense, as a chef has a lot of cooks working for him or her. "trưởng" also means chief.
"A new dish" or "the new dishes" would be more likely with the verb in the present tense.