Heat oil. Add onion, garlic, ginger and celery. Saute about 5 minutes, until vegetables are softened.Add broccoli, pepper, mushrooms and cabbage. Stir fry another 5 minutes on high heat.
Add eggs and char sui. Stir fry on high heat for 5 minutes.
Add Kecap manis, Sambal, shrimp powder and rice. Cook until rice is heated through and well coated with all of the seasonings, about 5 minutes.
To serve, garnish with seroendeng.