Open package and separate cinnamon rolls. (If you are using the cinnamon rolls that peel apart, skip the whole rolling step. Just peel them apart, spread Nutella on and roll them up.) Place one on its side and flatten slightly with the palm of your hand. Roll out using a rolling pin to create a vertical rectangle shape about 1/4" thick. Spread about 1/2-1tbs of nutella and roll up. Place on prepared pie plate. Repeat the process for the rest of the cinnamon rolls. Once they're all ready, place them in the oven and bake for 11-14 minutes or according to manufacturer's instructions. Let them cool for 3-5 mins then spread frosting on and serve warm.