What You're Really Eating When You Eat A Beyond Burger - Mashed - eviltoast
Out of the 18 ingredients on Beyond's website, some are familiar, like brown rice and salt. Others, like methylcellulose, are a little less so.

TLDR: lots of salt and artificial flavourings. But a lot of interesting chemistry goes into it too. There are annealing steps, and many other processes I don’t understand.