Place the carrots and green beans on one half of the baking sheet. Drizzle with olive oil then sprinkle with salt, pepper, and garlic powder. Toss to combine.
In a medium mixing bowl combine the water and breadcrumbs. Let sit one minute. Add in the soy sauce, garlic powder, ginger, and chile powder. Add the ground beef, salt, and pepper to taste, and mix well to combine.
Divide the beef into 16 meatballs and place them on the other side of the baking sheet.
Bake for 20-25 minutes, mixing the vegetables once or twice during cooking, or until the meatballs are cooked and the vegetables are tender.
Remove from oven.
Combine the mayonnaise and Sriracha.
Divide the rice between 4 plates. Put a scoop of vegetables on top of the rice along with 4 meatballs on each plate. Drizzle with the Sriracha mayo.