Heat your oven up to 375F and cover your sheet pans with non stick spray.
Mix together your turkey, mushroom, garlic powder, eggs, panko bread crumbs, salt, and pepper before shaping them into little balls.
Place meatballs onto your sheet pans and bake for 20-25 minutes, until browned and cooked through.
While the meatballs are cooking, mix together your Sriracha, honey, tamari, and garlic. Once mixed, cook over low heat until the sauce as bubbled and thicken a bit.
Either serve the sauce on the side to be dipped in or coat your meatballs with the sauce all at once before serving.