Sebastian eats strawberries like a normal human being, Jim eats the whole thing, leaves and all. Even says he likes the leaves the most.
He eats apple cores as well, that weirdo.
Also watermelon rinds, they're "sour" and Sebastian is continuously weirded out by his weird liking for inedible fruit parts.
He would scroff at the idea of these parts of the fruits being called "inedible".