The Blue Jays like most teams do not publish there food prices online, I believe only the teams with Stadium restaurants do and they publish the full menus with prices.
However, here is all of the food available at each of the stands:
http://toronto.bluejays.mlb.com/tor/ballpark/concessions.jsp
They also say a concession guide is coming soon, so maybe they put the prices there. I doubt it though. Go luck with your search.
