Start by placing a rack in the center of your oven and preheating it to 400°F.
Line a rimmed baking sheet with parchment paper to prevent sticking.
In a large bowl, combine all meatball ingredients except for the canola oil: ground chicken, panko, egg, green onion, cilantro, ginger, garlic, soy sauce, sesame oil, and sriracha.
Using a fork, break up the egg yolk and stir gently to combine, ensuring you don't overmix.
Scoop the mixture into 1 tablespoon portions and form into balls about 1 to 1½ inches wide.
Transfer the meatballs to the prepared baking sheet, ensuring little space between each.
Brush the tops and sides of the meatballs with canola oil for a golden finish.
Bake the meatballs until they reach 165°F, about 10 minutes.
Prepare the sauce by combining water, soy sauce, peanut butter, honey, rice vinegar, garlic, ginger, and sriracha in a medium saucepan.
Bring the sauce to a boil, whisking constantly until combined and thickened.
Once cooked, serve the meatballs with rice and veggies, drizzling generously with the sauce.