Marinate the sliced sirloin steak in soy sauce for at least 10 minutes.

Heat olive oil in a skillet over medium-high heat.

Add the marinated steak and cook for about 5-7 minutes until browned and cooked to your liking.

In the same skillet, add bell pepper, broccoli, and carrot.

Stir-fry for about 3-4 minutes until vegetables are tender-crisp.

In a bowl, layer cooked rice, followed by the cooked steak and vegetables.

Drizzle with teriyaki sauce and sesame oil, then top with chopped green onions.