Heat oven to 375 degrees.
Pour melted butter into a 3 quart baking dish or spray it with non stick cooking spray.
Separate both cans of dough into 16 rolls; set icing aside. Cut each roll into 6 pieces - place the chopped cinnamon rolls over the melted butter.
In a medium bowl, whisk together the eggs, cream, cinnamon & vanilla until combined. Drizzle the mixture over the cinnamon rolls. Sprinkle with pecans; drizzle with ¼ cup maple syrup.
Bake 25 minutes or until golden brown. Cool for 10 minutes. Remove covers from the icing; microwave for about 15 seconds or until thin enough to drizzle. Stir in 1 teaspoon of maple syrup. Drizzle over the cinnamon roll casserole.