In a bowl, combine leftover tandoori chicken, Ontario fontina, and Ontario mozzarella, salt and pepper in a bowl and mix until combined.
To make an egg wash, combine egg and water and mix until combined and set aside
Fold spring roll paper in half from corner to corner, forming a triangle. Fold the right side over. Brush with egg wash and fold left side over and seal. Making a triangle pocket, fill egg roll wrapper with 1 large tbsp of chicken cheese mixture; flip the top fold inwards and seal the seams with the egg wash. Repeat until all wrappers or filling is used.
Fry in oil until golden brown and serve warm