Prepare the Meatballs: In a large mixing bowl, combine ground turkey, egg, sea salt, onion powder, black pepper, and garlic powder. Mix thoroughly. Shape into ½- to 1-tablespoon-sized meatballs and place them on a rimmed baking sheet. If the mixture sticks to your hands, rinse your hands and continue with wet hands. Set aside.
Start the Soup Base: Heat olive oil in a large Dutch oven or soup pot over medium heat. Add diced celery, carrots, and onion. Cook, stirring occasionally, for about 7 minutes until the vegetables are softened and golden.
Add Broth and Potatoes: Pour in chicken broth, filtered water, and add the diced potatoes. Stir in sea salt and bring the soup to a boil over high heat. Add the orzo (if using), then reduce the heat to medium-low and simmer uncovered for 10 minutes, or until the potatoes are fork-tender.
Cook the Meatballs in the Soup: Gently add the prepared meatballs to the simmering soup. Cook for about 5 minutes, ensuring the meatballs are fully cooked through.
Finish with Egg and Seasoning: Stir the lightly beaten egg into the soup, along with fresh dill and grated garlic. Simmer for an additional 2-3 minutes, until the egg is cooked. Season with black pepper and additional salt to taste.
Serve: Remove the pot from heat. Sprinkle extra dill or parsley (if desired) over the soup. Serve hot with crusty bread or rolls.