Cube pork tenderloin into 1” pieces and place into a medium bowl. Cover pork with soyaki sauce and place into refrigerator for at least 30 mins, up to a few hours.
Chop broccoli head into florets and place onto sheet pan lined with foil. Drizzle on oil and toss with hands. Season with salt and pepper then roast for 20 minutes.
Meanwhile, cook the rice by rinsing well then adding to a medium saucepan. Add 2 cups water and a pinch of salt. Bring to a boil, then lower heat to a simmer and cover. Cook for 20 minutes or until liquid has absorbed.
To cook the pork, heat a large skillet over medium high heat, then add the pork, shaking off extra marinade.
Let pork cook undisturbed for 3-4 minutes to help caramelize, then toss and cook another 3-4 minutes. Add in cubed pineapple and remaining marinade to pan. Cook 1-2 more minutes.
Assemble bowls by adding a scoop of rice, followed by roasted broccoli, then the pork and pineapple topped with a drizzle of sauce from pan. Enjoy!