By weird I mean outside of regular cat diet, things like cornflakes, ketchup or banana bread (these are real examples from my and my friends' cats).
Granpa Rex Allen, a Texas-dwelling Sphynx/Devon-Rex cross, regularly consumed broccoli. He lived to be 34 years and 2 months old.
From here: https://modkat.com/blogs/modkat-purrr/worlds-oldest-living-cats-how-to-tell-if-your-cat-will-be-one