Heat the oven to 425°F and line a large rimmed sheet pan with parchment paper.
Toss the broccoli with 1/4 cup teriyaki sauce, the salt and black pepper, spread it out and roast for 10 minutes.
Turn the broccoli and add the salmon fillets and pineapple chunks to the pan.
Brush the salmon with 1/4 cup teriyaki sauce and roast for 10 minutes.
Break the cooked rice into loose clumps on an open section of the pan and spoon the remaining 1/4 cup sauce over it.
Roast for 3 to 5 minutes more, until the rice is steaming and the salmon reaches 145°F.