Pillsbury recently launched some new quick-bake muffins, including a "Caramel Apple Streusel" muffin.
Perhaps someone can correct me, but I don't think any other bakery goods maker has ever offered such a muffin of this variety.
Other flavors include Blueberry Streusel and Chocolate Fudge Chocolate Chip. The muffins take only 6 minutes to bake, and they have fillings inside.
You can find them online at Wal-Mart.