OK, let's try...
And Chefross can comment if I got the idea right
I found a pack of olive pesto in the fridge (to me, pesto is made of basil, not olives, but that's beside the point)
I added some of the juice of a tomato to it and garlic. As you can never have enough garlic
2 sourdough balls (not really a convenience product)
Tin layer of olive pesto, tomato & cheese and we got olive pesto pizza