There is a church that provides really good meals either once a day or once a week. I forgot.
Also there is a strange church that provides a sort of to-go food bank. If you ever want to leave the streets you can join this same church. You will be stuck there for a bit while you learn their teachings, then you can go back out and get a job. Odd but actually not terrible.
Do NOT use the Salvation Army shelter. They are terrible. Maybe their food bank is ok, but the shelter sucks.