Start by preheating the oven to 350°F. Grab a 9x13 baking dish and coat it with non-stick spray. Open up the can of cinnamon rolls and remove the dough, Set the frosting aside for the end. Cut each cinnamon roll into 4 even quarters. Add the quarters of dough to the greased baking dish and make sure they’re evenly spread out.
In a separate mixing bowl, add the eggs, cream, and cinnamon. Whisk that together well until combined. Make sure the eggs are smooth, and not clumpy.
Pour the egg mixture evenly over the dough in the baking dish.
Drizzle the syrup over the mixture as evenly as possible.
Place the dish in the oven and bake for 30-35 minutes, or until the top of the casserole is a golden brown. Remove from the oven.
Heat the frosting in the microwave for 5-10 seconds and then pour it evenly over the cooked casserole. Slice and serve warm. Enjoy!