Gather all ingredients for easy access.

In a large bowl, mix soy sauce, brown sugar, sesame oil, garlic, and ginger. Add chicken and marinate for at least 30 minutes.

Heat oil in a skillet over medium-high heat. Cook the marinated chicken until golden brown and cooked through (5-7 minutes per side).

In a separate pan, bring reserved marinade to a boil and simmer for about 5 minutes until thickened.

Prepare rice according to package instructions.

To assemble bowls, layer cooked rice at the bottom, top with sliced chicken and drizzle with sauce. Garnish with green onions and sesame seeds.