Preheat oven to 350 degrees. Generously coat a large baking tray with non-stick cooking spray. Spread a heaping spoon of Nutella on one slice of bread and top with another slice to make a sandwich. Using a knife, slice the sandwich lengthwise into 3 equal strips. Repeat with the remaining breads. Keep it aside. In a bowl, whisk together eggs, milk, sugar and vanilla extract. Dip each bread strip into the egg mixture coating on all sides.

Allow excess egg mixture to drip off of the bread stick and transfer it to the baking tray. Lightly coat the top of the french toast sticks with non-stick cooking spray. Bake for 8-10 minutes. Remove the baking sheet from the oven and use a spatula to flip each stick over. Return to oven for an additional 8-10 minutes or until well toasted on both sides. Remove from oven. Serve with maple syrup for dipping and sliced strawberries.