Preheat oven to 350°. Prepare pasta according to package directions.
Meanwhile, stir together chicken, 1/2 cup white Cheddar cheese, and next 6 ingredients; stir in pasta. Spoon mixture into 6 lightly greased 8-oz. ramekins or a lightly greased 11- x 7-inch baking dish. Sprinkle with almonds and remaining 1/2 cup white Cheddar cheese.