In a bowl, combine the rice, water, onion, salt, celery salt, pepper, garlic powder, cumin, and 1/2 tsp chili powder. Add the beef and mix with your hands until thoroughly combined.
In a separate bowl, combine the tomato sauce, beef broth, brown sugar, Worcestershire sauce, and 1/2 tsp chili powder.
Pour a thin layer of sauce into the bottom of an 8x8 or 9x9 inch baking dish. Form the meat mixture into 1 1/2 inch meatballs and place in a single layer into the baking dish. Pour the remaining sauce over top. Cover tightly with aluminum foil.
Bake at 350 for approximately 45 minutes or until rice is fully cooked.