01 - In a medium bowl, whisk together pineapple juice, soy sauce, honey, garlic, ginger, rice vinegar, olive oil, and black pepper until well combined.
02 - Place chicken breasts in a zip-top bag or shallow dish and pour the marinade over them. Seal and refrigerate for at least 15 minutes, or up to 2 hours for deeper flavor penetration.
03 - Rinse jasmine rice under cold running water until the water runs clear. Combine the rinsed rice, coconut milk, water, and salt in a saucepan. Bring to a boil over medium-high heat, then reduce to low, cover tightly, and simmer for 15 minutes.
04 - Remove the saucepan from heat and let the rice stand, still covered, for 10 minutes to finish steaming. Fluff gently with a fork before serving.
05 - Heat a large skillet or grill pan over medium heat. Remove the chicken from the marinade, reserving the excess marinade. Cook the chicken for 5 to 6 minutes per side until golden brown and cooked through to an internal temperature of 165°F.
06 - Pour the reserved marinade into a small saucepan. Add the diced pineapple and bring to a boil. Reduce to a simmer and cook for 3 to 5 minutes until the sauce is slightly thickened and glossy.
07 - Slice the cooked chicken breasts and arrange over a bed of coconut rice. Drizzle generously with the reduced pineapple sauce. Garnish with sliced green onions and sesame seeds if desired.