Heat oven to 400ºF. Spray 13x9-inch (3-quart) glass baking dish with non stick cooking spray.

Stir 2 Sauce Mix pouches, boiling water, milk and margarine with whisk in baking dish. Stir in 2 Potatoes pouches. Stir in salsa, sour cream, chiles and cheese until well blended.

Bake 35 minutes or until potatoes are tender. Sprinkle with cilantro. Let stand 5 minutes before serving (sauce will thicken as it stands).