Hello,
I can make this list for you before the end of Dec 29, but there's something that has to be cleared out: are you looking for the list of specifically traditional foods of the Russian people alone (single Russian ethnicity), or the whole food variety of all peoples that made an impact on Russian cuisine historically (all the peoples that comprised Russian Empire/Soviet Union/modern Russia)? Because even for the second variant 2000 entries will be not easy to find (though, I can make that). And if you need only ethnic Russian food, that is practically impossible to scrape up two thousand foods. Please, specify these things and feel free to ask any additional questions via messages system. I am looking forward to hearing from you soon.
Yours truly,
Andrey Sak