How to Make It
Preheat oven to 450°F. Place a rimmed baking sheet in oven (do not remove pan while oven preheats).
Place rice and oil in a bowl. Using your fingers, break apart rice and coat with oil. Carefully remove pan from oven; spread rice mixture in an even layer in center of pan. Bake in preheated oven for 5 minutes; stir. Top rice with pineapple and bell pepper; bake at 450°F for 5 minutes. Arrange shrimp over rice mixture; bake at 450°F until shrimp are done, about 6 minutes.
Place soy sauce, sugar, and vinegar in a microwave-safe bowl. Microwave at high 45 seconds. Whisk until sugar dissolves. Drizzle over pan. Add black pepper; toss. Sprinkle with cilantro.