Go ahead and use other olives if you like. You can also use olives with pits instead of the pitted variety.
If you want to tote this appetizer to a get-together, package the olives separately from the roasted peppers. When you arrive at your destination, combine them in your serving bowl and garnish with the rosemary and orange spirals.
Greek Kalamata olives are large, rich and fruity and are a dark eggplant color. The flavors in this recipe are a perfect match for them.