Join Avenue Items from the Dojo tell you how many EV you get from each item.
Restaurant item don't tell you how many EV you get with each item.
"power lunch A" says it raised HP by "a lot". I already checked Serebii and they didn't give an answer. The lunch costs 36,000 - can I assume it gives 36 EV?
edit: 36 x 7 = 252....