Rinse the jasmine rice under cold water until clear.
In a small saucepan, combine the rice, coconut milk, and water. Bring to a boil, then reduce heat to low, cover, and simmer for 15 minutes.
While rice cooks, dice the pork tenderloin into 1-inch cubes and season with sea salt and black pepper.
Heat sesame oil in a large skillet over medium-high heat.
Add the pork cubes to the skillet and sear until browned on all sides, approximately 5-6 minutes. Remove pork from the pan and set aside.
In the same skillet, add the sliced red onion, bell pepper, and pineapple chunks. Sauté for 4-5 minutes until the vegetables soften and the pineapple begins to caramelize.
Stir in the minced garlic and grated ginger, cooking for 30 seconds until fragrant.
Return the pork to the skillet, pour in the coconut aminos, and toss everything together for 1 minute to glaze.
Remove the coconut rice from heat and fluff with a fork.
Serve the pineapple pork over the coconut rice and garnish with freshly chopped cilantro.