Start by preparing the chicken; Whisk soy sauce, water, honey, garlic, oil, and coconut milk to a bowl.
Place the chicken breast into a Ziploc bag, pour the prepared marinade over the chicken, and seal the bag.
Gently press the marinade around the chicken to evenly coat. Refrigerate and let marinate for 2 hours to overnight.
Heat the grill to medium. Remove the chicken from the marinade and place it onto the preheated grill.
Grill until nicely golden-brown, about 6-8 minutes on each side, or until a thermometer inserted in the center of each chicken breast reads 165F.
While the chicken is grilling, prepare rice. In a saucepan, bring coconut milk and water to a boil over medium heat.
Once starts to bubble immediately add in the rice and salt, stir well to combine. Cover and let it simmer on low for 12-15 minutes or until rice is cooked.
Once the chicken is done, remove from the heat and set aside.
Now add the sliced pineapple to the grill and cook for about 2 minutes per side, or until nicely charred.
Divide the rice among 4 bowls.
Arrange grilled chicken and pineapple on top. Garnish with cilantro leaves and serve lime wedges if desired.