In medium bowl, combine sour cream and salsa; set aside. Coat a 13x9x2-inch baking dish with cooking spray. Layer bottom of dish with 3 cups rice. Top with half of the sour cream mixture, then with 1-1/2 cups cheese. Add layer of beans, remaining rice, and remaining sour cream mixture. Bake at 350 degrees 15 minutes; remove from oven. Mix remaining cheese with chips and sprinkle on lasagna. Return to oven and bake 5 minutes or until cheese melts. Makes 8 servings.