Cut the chicken breast into bite-sized pieces and season with sea salt, black pepper, and smoked paprika.
Heat the olive oil in a medium skillet over medium-high heat and sear the chicken until golden brown on all sides, then remove from the skillet and set aside.
In the same skillet, add the diced yellow onion and red bell pepper, sautéing for 3-4 minutes until the vegetables begin to soften.
Stir in the minced garlic and dry rice, toasting the rice for about 1 minute until fragrant.
Pour in the chicken broth and add the saffron threads, stirring to combine and scraping up any browned bits from the bottom of the pan.
Return the chicken to the skillet, bring the liquid to a boil, then reduce heat to low, cover, and simmer for 15 minutes.
Gently stir in the frozen peas, cover again, and cook for an additional 2-3 minutes until the rice is tender and the liquid is absorbed.
Remove from heat and let the skillet sit covered for 5 minutes before fluffing the rice with a fork and serving.