You have chosen to make Cinnamon Roll French Toast.
Nice choice and quickest.
Slice as many cinnamon rolls as required in half lengthwise.
Whisk together 1 egg and a splash of whole milk per cinnamon roll in a shallow dish. Add a teeny pinch of vanilla paste. Soak cinnamon rolls for 15 minutes, until much of the egg mixture is absorbed.
Heat pan to low. Add butter. Once butter melts, add cinnamon roll slices.
Cook until brown on the bottom and firm. Add the tiniest speckle of powdered sugar to make it prettier, remembering these are already quite sweet.
Enjoy the fruits of your resourcefulness.