During the summer, there are few things I want to eat more regularly than pasta salad. It’s hearty without being heavy, easy to eat right out of the fridge when it’s too hot to cook, and holds up well as leftovers for days. But the thing I appreciate most about pasta salad is that it is the original no-recipe recipe. In fact, I would argue that pasta salad always turns out best when there’s no recipe involved. Pasta salad is the kind of dish intended for cleaning out your refrigerator. After you boil your preferred shape of noodles — I…