Green and black may not refer to different types of olives, but there are different varieties of olives that can be served either ripe or unripe. Greek Kalamata olives, such as this jar of pitted ...

Kalamata olives are rich purple, almond-shaped olives grown in southern Greece; Spanish green olives have a milder flavour but because of their large size, they are often stuffed with anchovies or ...

This is a really simple pasta, and it's great for a quick vegetarian dinner alongside a green salad. If you want to add meat, some chopped chorizo when you cook the capsicum would go well.