Lightly coat a small oven-proof baking dish with olive oil.
Place olives in the dish in a single layer.
Sprinkle with rosemary leaves and grated Parmesan cheese.
Place in the oven and bake for 15 to 20 minutes until fragrant and most of the cheese is melted.
Notes
* Note that this is the kind of recipe that is easy to eyeball – use more or less an ingredient if you prefer. * For grating this cheese, I use the coarse side of a box grater but a coarse microplane would also work. I like the cheese to be almost melted but a bit crusty. I love my Cuisipro 4 Sided Box Grater – it’s by far the best box grater I have used.