Chopstick Tuna 1 can cream of mushroom soup 1 (3 ounce) can chow mein noodles 1/4 cup onion, chopped 1 can tuna 1/4 can water 1/2 cup salted cashew nuts 1 cup celery, chopped Combine soup and water. Add half of the noodles and the remaining ingredients. Toss and place in a baking dish. Sprinkle remaining noodles on top. Bake at 375 degrees F for 15 minutes.