Heat a heavy medium pot over high heat. Add beef and saute until browned.
Add onion, scallions, garlic, crushed red pepper and 1 tbsp soy sauce. Saute another 2 minutes.
Add carrots, cauliflower, red pepper, rice, 2 cups water, fish sauce and remaining soy sauce.
Bring to a boil, then reduce to low heat, until the water is just skimming the top of the rice, about 10 to 15 minutes. Then cover and reduce heat to low, cook covered 15 minute, remove from heat and let sit 5 minutes without opening the lid. Fluff with a fork and add cilantro .