Whisk soy sauce, honey, garlic, ginger, remaining pineapple juice, and cornstarch in a small bowl. Pour into skillet; stir until thickened, about 2-3 minutes.
Return chicken to skillet; stir to coat with sauce. Simmer for 1-2 minutes to combine flavors.
Serve rice in bowls topped with chicken mixture. Garnish with green onions and sesame seeds if desired.
Notes
For extra flavor, consider adding a drizzle of sesame oil or chopped cilantro.