In a mixing bowl, combine soy sauce, brown sugar, sesame oil, minced garlic, grated ginger, and black pepper. Mix well.

Add the sliced beef to the marinade and let it sit for at least 15 minutes.

In a rice cooker, combine jasmine rice and water. Cook according to the rice cooker instructions.

Heat a skillet over medium-high heat. Add the marinated beef and cook for about 5-7 minutes, or until fully cooked.

Serve the cooked beef over a bed of rice, topped with sliced green onions, carrots, cucumber, and sesame seeds.