This isn't a true cobbler, but it is a similar recipe. Using cereal makes it a little faster to prepare - be creative and try whatever kind of cereal you have! Any kind of flake and/or nut cereal will work, Think Nut N Honey, or Oat Clusters. I'm not a raisin fan, but Raisin Bran would probably work well, too.
I've tried three different flavors of yogurt (blueberry, blackberry and vanilla), and each was wonderful. I just grab one little container of whatever's in my fridge that week and use it.
The apples: Again, I've tried different varieties. I usually buy Fiji or something tart; I've used both, and they both work well.
Almost all of the 15 minute prep time comes from peeling and cutting the apples. After that, it comes together incredibly quickly.