i saw this version (and image) on martha stewart's website here.
here's how it goes:
ingredients:
mozzarella cheese
toasts (and i say...don't take the easy route here, take the time to grab a really delicious artisan bread for this one!)
homemade (or store bought) pesto (i actually think this brand is really delicious, believe it or not)
arugula
shaved parmesan (again, i say don't skimp on the metza cheese, go parmesan reggiano all the way, it's worth the expense)
freshly ground black pepper
(*the only thing i might add here would be a drizzle of freshly squeezed lemon juice for a burst of interesting and unexpected flavor.)
i think you can figure out from the photo how to layer the ingredients. or do it your own way ;) i say, pour a delicious glass of red wine and start seriously enjoying yourself. it is friday after all...