That John's willing to take even a single bite to prove the food is safe is clearly a huge deal to him. So Jarrod would be a Real Dick if he didn't eat now. He picks up one of the sandwiches, nibbles at a corner...

and then dives in like a man who hasn't had the chance to eat in a while. Though from how he's built, it's not like he's been skipping meals. Packing in the protein, clearly, all lean muscle. Dai Shi never ate for pleasure, only for sustenance.

"This is the best thing I ever..." chomp chomp "...ever ate."