Cut croissants in half and spread each with nutella and banana. Close croissant and cut in thirds or quarters.
In a bowl, whisk together eggs, milk, cinnamon, nutmeg, vanilla and almond extract, frangelico and orange zest.
Place croissant quarters in baking dish and pour egg mixture over making sure all the bread is covered well. Cover with foil and allow to soak for 30 minutes.
*I used individual baking dishes and put 3-4 quarters in each. You can also use a 9x13 baking dish and pour everything in.
Bake in 350 degree oven for 25 minutes covered with foil. Remove foil and continue to bake for additional 10 minutes.