Phở is a popular Vietnamese noodle soup made with beef broth, rice noodles, and various toppings, including beef slices, beef balls, and herbs. Beef balls are a popular addition to phở, and they can be made with a variety of ingredients. Ingredients 1 pound ground beef 1/2 cup chopped onion 2 cloves garlic, minced 1 egg 1 tablespoon fish sauce 1