My sister keeps up to date with the streaming sites since I just torrent from nyan. Right now, 9anime is it. So what you do is search for it and pick the site that's active.

Food Wars has a hentai cloak that shrouds an amazing storyline and food culture. Don't let it put you off. The last season is bad and can be skipped.

This is season 1:

https://9anime.pe/watch/food-wars-shokugeki-no-soma-185?ep=4405