This is one of my brother's favorite dish. We always had a square meal at home. It was Rice, Daal (various lentil curries), Sabzi (Veggies) and Chhas (Curd / Yogurt), with a variety of pickles and/or papads. Sometimes we just got bored with it. Especially my brother who is not too fond of food that is not spicy or oily. So he would ask mom to make these tasty little potato rings instead of a veggie side dish. Typically on a rainy evening, this was what we all loved to munch on.
You can team this up with rice + daal or pulao or even make it as an evening snack with tea or eat it just like that with some ketchup / chutney. This has lot less oil compared to its deep fried cousin, so is healthier too.
You can substitute some other veggies like the sweet potatoes, raw banana or even eggplant instead of potatoes.