This sounds like a lovely, lower fat, summer salad with a bit of a twist on traditional potato salad. I've not tried it yet, but have had similar versions and have been looking for a potato salad with peas. I've actually combined three recipes here and am looking forward to giving this one a go. Prep time does not include chill time.
Note: Always slightly undercook potatoes for salads, since they keep cooking after they're drained and you don't want mushy salad. Warm potatoes soak up more dressing than cold ones.