ROASTED CARROTS WITH ARUGULA PESTO

Serves 8-10 as a side dish 2 lbs mixed carrots of your choice Olive oil Kosher salt Pepper 1/4 cup chopped Italian parsley For pesto: 1/2 cup raw almonds 1 garlic clove 2 cups packed arugula leaves 1/4 cup freshly grated Parmesan cheese (optional) Kosher salt Zest and juice of one lemon 1 cup (8 fl oz/250 ml) extra-vir