I have eaten roughly the same thing every day for 5 years with the current permutation residing at Antony Diet
I used to make my own DIY-lent for a couple years, but now just purchase Soylent:
https://docs.google.com/spreadsheets/d/1vcbqN7Us9idlbJf6OjEVkQBdFmMoo4MyIYpEQqkDlqw/edit?usp=sharing
‣