Season the chicken. Combine the chicken with the paprika, garlic powder, oregano, coriander, cayenne, brown sugar, 3/4 teaspoon salt, and lemon juice. Marinate at least 15 minutes. Sear. Heat 1 tablespoon of oil in a large pot over medium high heat and brown the chicken on all sides. Transfer to a plate.
Soften the vegetables. Pour 2 tablespoons of oil into the pot and cook the onion and garlic until soft and fragrant. Stir in the bell pepper and cook a few minutes more. Coat the rice. Add the rice and stir to coat. Mix in the turmeric, red pepper flakes, and 1/4 teaspoon salt.
Add liquid. Pour in the broth, scrape the bottom of the pot, and bring to a boil.
Combine. Return the chicken and juices to the pot, add the frozen peas, and reduce the heat to low.
Simmer. Cover and simmer 15 to 20 minutes, until the rice is tender, the liquid is absorbed, and the chicken reaches 165 degrees F.
Finish. Loosen the rice with a fork and top with green onion and a drizzle of sauce.