Preheat the Oven : Preheat your oven to 400°F (200°C). Line a baking sheet with parchment paper or lightly grease it to prevent sticking.
Mix the Ingredients : In a large mixing bowl, combine the ground chicken, green onions, egg, lime zest, panko breadcrumbs, cilantro, ginger, lemongrass, garlic, kosher salt, and sweet chili sauce. Mix everything thoroughly but gently to avoid overworking the meat, which can make the meatballs dense.
Shape the Meatballs : Using clean hands or a small cookie scoop, form the mixture into evenly sized meatballs, about 1 to 1 1/2 inches in diameter. Place them on the prepared baking sheet, ensuring there’s a bit of space between each meatball.
Bake the Meatballs : Bake the meatballs in the preheated oven for 18–20 minutes, or until they are lightly browned and cooked through. The internal temperature should reach 165°F (74°C).
Serve : Once baked, serve the meatballs hot with a drizzle of extra sweet chili sauce, or alongside steamed rice, noodles, or a crisp salad. They also pair beautifully with a creamy peanut dipping sauce for an authentic Thai touch.