Open the cans of cinnamon rolls and cut each roll into 4 pieces. Lay the rolls in a 9 X 13 inch baking dish that has been sprayed with non-stick cooking spray.
In a bowl, combine the eggs, milk, cinnamon and syrup. Pour over the cinnamon rolls making sure everything is covered.
Bake in a 350 degree oven for about 20 to 25 minutes or until the rolls are puffed up and slightly browned.
In a microwave safe bowl, heat the icing that came with the cinnamon rolls in the microwave for a few seconds. Drizzle over the casserole.