These are amazing. Right on the grill or even in your oven. A sweet flavor with savory and spicy tones makes this such a nice side dish. If you use smaller onions you can serve one per person which is what I prefer to do, but either way you make it - they are great. The important thing is the vinaigrette. Fresh herbs is the way to go. But ... if you only have a bottled dressing ... they will be just fine.