On my jumbo shopping trip to replace my kitchen staples with gluten free ones I came across "Only Oats" by Avena Foods. The packaging and their website indicate that their oats are uncontaminated with wheat etc. Their muffin mix is incredible! I've baked a few dozen muffins and my kids love them Or, maybe they just love that I'm actually baking for them! It's a Canadian product so I'm not sure about their distribution but they receive a stamp of approval from our household.