01 - Set oven to 430°F (220°C) and line a baking sheet with parchment paper.
02 - In a large bowl, blend ground meat, egg, breadcrumbs, garlic, scallions, soy sauce, ginger, salt, and pepper until just incorporated. Form into 16 to 20 evenly sized meatballs and place them on the prepared baking sheet.
03 - Transfer meatballs to the oven and bake for 18 to 20 minutes, turning halfway, until golden and cooked through.
04 - Rinse rice thoroughly under cold water. Add rice and water to a saucepan, bring to a boil, then reduce heat to low. Cover and simmer for 12 minutes, then remove from heat and let stand, covered, for 5 minutes. Fluff gently with a fork.
05 - In a small bowl, whisk together sriracha, mayonnaise, honey, soy sauce, rice vinegar, and sesame oil until homogeneous. Reserve.
06 - Heat vegetable oil in a large skillet over medium-high heat. Add carrot, bell pepper, and green beans; cook while stirring for 4 to 5 minutes until tender yet crisp. Season lightly with salt.
07 - Once baked, toss meatballs in approximately two-thirds of the firecracker sauce to coat thoroughly.
08 - Arrange meatballs atop jasmine rice with sautéed vegetables on the side. Drizzle with remaining sauce and sprinkle with sesame seeds and extra scallions if desired.