PREHEAT oven to 450°F. Combine turkey, Alfredo sauce, mushrooms, peas and carrots, Parmesan cheese and milk.
CENTER one-fourth of turkey mixture on each sheet of Reynolds Wrap® Aluminum Foil.
BRING up foil sides. Double fold top and ends to seal packet, leaving room for heat circulation inside. Repeat to make four packets.
BAKE 15 to 18 minutes on a cookie sheet in oven. Stir turkey mixture spoon over spaghetti. Sprinkle with croutons, if desired.
REYNOLDS KITCHENS TIP: Packets can be frozen up to 4 weeks. Bake frozen packets on a cookie sheet in preheated 450°F oven 25 to 30 minutes.