In salted water: boiled new potatoes (red white gold purple, mix if you want) I also add green and yellow string beans cooked, pasta cooked, and the dressing while all is still a bit warm.
my dressing is simple: spicy mustard and wine vinegar, salt and pepper, extra virgin olive oil, and a couple tablespoons of pesto, wisk together.
garnish with some fresh basil leaves and shaved parmesan if you like.