Heat the oils in a stir-fry pan or large skillet. Add the onion and sauté over medium heat until translucent.
Add the carrots and continue to sauté until the onion is golden.
Add rice, scallions, corn or baby corn, peas or green beans. Drizzle in the soy sauce. Stir-fry over medium-high heat for 8 to 10 minutes, or until the rice is touched with golden spots.
Season with freshly ground pepper, and additional soy sauce if need be.
Serve at once, garnishing each serving with sesame seeds, and if desired, some cilantro.