PREHEAT oven to 400 degrees F.
WARM alfredo sauce and water to a low simmer, stirring occasionally.
PLACE tortellini in a 13” x 9” baking pan or casserole; add alfredo sauce and spinach leaves and chicken, stirring to combine. Top with parmesan cheese and breadcrumbs. Cover with aluminum foil.
BAKE for 10 minutes; remove foil and bake an additional 5 minutes. If more browning is desired, place under the broiler until parmesan and breadcrumbs are golden brown.
