01 - Rinse rice under cold water until clear. Combine rice, water, and salt in a saucepan. Bring to a boil, then reduce heat to low. Cover and simmer for 15 minutes. Remove from heat and let stand, covered, for 5 minutes. Fluff with a fork.
02 - In a large bowl, combine ground beef, egg, breadcrumbs, minced garlic, grated ginger, Sriracha, soy sauce, sesame oil, salt, pepper, and green onions. Mix gently until just combined, avoiding overmixing.
03 - Form the mixture into 20 to 24 small meatballs, each about 1 tablespoon in size.
04 - Heat a large nonstick skillet over medium heat. Add a small amount of oil if necessary. Brown the meatballs in batches, turning to brown all sides, about 6 to 8 minutes. Remove and set aside.
05 - In the same skillet, sauté minced garlic for 30 seconds. Add Sriracha, soy sauce, honey, rice vinegar, ketchup, and sesame oil. Stir and bring to a simmer.
06 - Stir in the cornstarch slurry and cook until sauce thickens, about 1 to 2 minutes.
07 - Return meatballs to the skillet, tossing to coat them evenly with the sauce. Simmer for 5 minutes until heated through.
08 - Place meatballs over steamed rice and garnish with sliced green onions and sesame seeds.