Prepare all of the ingredients.
In a bowl, combine meatball ingredients and form into 24 meatballs.
In a sauce pan over medium heat, add rice and 1 quart of beef broth. Cover and cook for 17 minutes. Do not remove lid, just remove from heat until ready to serve.
In a large saute pan over medium-high heat, add oil. Once heated, add meatballs and cover pan. Cook for 15 minutes, turning once during cooking process. Remove meatballs from pan and keep warm. DO NOT CLEAN PAN.
Add remaining beef broth to pan and bring just to a boil. Reduce heat to medium. Remove ¼ cup of broth to a cup and combine with corn starch (thoroughly mix), then pour back into to pan and stir. Cook for 2 minutes then add onion and bell pepper. Cook for 3 minutes then add pineapple (with juice) and cook another 3 minutes. Return meatballs to pan and stir to coat.
Add portion of of rice to a shallow bowl. Add a portion of meatballs, veggies and pan gravy. Sprinkle with scallions and sesame seeds. Drizzle with additional Sriracha if desired.