You can make this soup more nutritious by adding your favorite vegetables such as carrots, broccoli, green beans, etc. Other veggies like green onions, colored bell peppers, etc can also be added.You can also add tofu to this soup.If you can’t find galangal, you can use ginger instead. Use lemon zest instead of kaffir lime leaves if you are not able to find them.Thai bird’s eye chilies are very very hot. Don’t try to bite into them.You can also use oyster mushrooms or for a more intense flavor, use rehydrated dried mushroomsSmash the lemongrass stalk with the back of a knife and then add it to the soup so that it releases all its flavor. I also like to use lemongrass leaves wrapped in a bindle to flavor the soup instead of the stalk sometimes.When this soup is made with chicken, it’s called Tom Kha Gai Soup. Add boiled and shredded chicken breast to the basic vegetarian soup to make this version. You can replace the veg broth with chicken broth.You can add prawns to this soup instead of chicken. Make it into a full meal by adding some cooked noodles to it. I like to add rice vermicelli noodles but you can go ahead and add whichever are easily available.