Preheat your oven to 400°F (200°C). This will ensure that your meatballs cook evenly and develop a nice golden color.
In a large mixing bowl, combine the ground chicken, egg, Panko breadcrumbs, sweet chili sauce, low-sodium soy sauce, minced cilantro, grated garlic, grated ginger, and sesame oil. Mix everything together using your hands or a spoon until fully combined.
Using your hands, scoop out about 2 tablespoons of the meat mixture and roll it into a ball. Place the meatballs on a baking sheet lined with parchment paper, making sure they are spaced apart for even cooking.
Place the baking sheet in the preheated oven and bake for 15-20 minutes, or until the meatballs are cooked through and have a nice golden brown exterior.
While the meatballs are baking, prepare the dipping sauce. In a small bowl, combine the sweet chili sauce, lime juice, and water. Adjust the water amount to reach your desired consistency.
Once the meatballs are fully cooked, remove them from the oven and let them cool slightly. Serve the meatballs warm with the dipping sauce on the side, garnished with sliced green onions, fresh cilantro, and a sprinkle of sesame seeds.