The roasted veggies can be: sweet potato, pumpkin / squash, leeks, fennel, zucchini, aubergine. To cook them we add olive oil, salt and pepper to them and take them to a medium-heat oven (180C) until they're al dente. Depending on the size you cut them in this could take 20-40min. You can also add fresh herbs to them and a garlic clove to add extra flavour. Try to cook them separate so they don't all have the same taste and your salad stays interesting.