Preheat oven to 350. Spray a 2-quart baking dish with cooking spray. Cut each cinnamon roll into four pieces and place in the dish. Drizzle melted butter over cinnamon rolls. Mix brown sugar and cinnamon in a small bowl and spread half the mixture over the cinnamon rolls.
Pour cherry pie filling over the cinnamon rolls and mix together. Sprinkle the remaining brown sugar mixture and pecans on top. Bake for 40-45 minutes, until the cinnamon roll pieces are done. Drizzle the icing that comes with the cinnamon rolls on top and serve.