1. In a small bowl, mix together soy sauce, cornstarch, and 2 tablespoons of hot water. Whisk well to avoid lumps. In a pan or wok with 1 tablespoon of olive oil, sauté the julienned vegetables over high heat, stirring regularly for 10 minutes.
2. Add cooked rice, mix well, and continue cooking for 5 minutes. The vegetables should remain slightly crunchy. At the end of cooking, add the soy sauce mixture, season with pepper, and mix well. Let it cool down.
3. Shred the beef, peel the sweet onion, and finely chop it. In another pan with the remaining oil, cook the beef and onion over high heat for 5-6 minutes, stirring regularly. Add parsley, salt, pepper, and mix.
4. Divide the beef into the bottom of 4 bowls, press it down with the back of a spoon. Add the vegetable rice on top, pressing it down again. Flip your bowl onto a plate to unmold it, then enjoy.