Have you tried making pralines with your pecans? That might get your cinnamon in your cinnamonless cinnamon rolls without adding cinnamon to your cinnamonless cinnamon rolls. That is, if you add cinnamon to your pralines. Otherwise, you'd have cinnamonless cinnamon rolls with cinnamonless pralines. (Try saying that out loud 5 times fast)

Either way, they look "cinnfully" delicious.