This vibrant homemade pesto is made with fresh chives and parsley in place of basil. It’s a bright sauce with savory, onion notes, making it a great dressing for mild, creamy potatoes. Green beans or asparagus are added to the potatoes during the last few minutes of cooking, for an easy one-pot approach. Once drained, the potatoes and veggies are returned to the hot pot to dry out in the residual heat, which means your potato salad won’t end up watery. Toss the potatoes with the pesto while…