Learn how to make the base crostini here!
To ensure a truly vegetarian dish, make sure you are using vegetarian cheeses.
Use a microplane to zest a lemon. I use mine all the time for zesting and cheese grating. Get a microplane here!
Fresh corn always taste best in recipes like this, but if it is out of season or not convenient, you can easily swap out frozen corn. Just thaw and drain the corn, then proceed as directed. Canned corn could also work however I recommend frozen because the canned liquid alters the flavor of the corn.