Preheat the oven to 375°F. Line a baking sheet with parchment paper.
Separate the crescent rolls into triangles.
Spread about ½ tablespoon of Nutella all over the dough.
Slice the banana and place slices along the wide end of the triangle.
Starting from the wide end, roll up the crescent roll and place on the baking sheet.
Whisk the egg with a tablespoon of water to make an egg wash to brush on the tops of each crescent roll.
Combine the cinnamon and sugar and sprinkle on top of each roll.
Bake for 10-12 minutes until golden brown.
Serve warm. Enjoy!
Notes
To store any leftovers, place them in an airtight container or wrap them in plastic wrap. Place them in the refrigerator and they can be kept for up to three days.I do not recommend freezing baked crescent rolls with Nutella. The crescent roll dough may become slightly soggy upon thawing and reheating, losing some of its flaky texture. And the Nutella can also become a bit grainy after being frozen and thawed.