Season chicken with ½ teaspoon salt, pepper, and paprika. Sear in olive oil over medium-high heat, 4–5 minutes per side. Remove and set aside.
Sauté onion in the same skillet for 3 minutes. Add garlic and cook 30 seconds.
Add rice and toast for 1 minute, stirring constantly.
Pour in broth and remaining salt. Scrape up browned bits. Return chicken to the skillet. Bring to a boil, reduce heat, cover, and simmer 18–20 minutes.
Stir in frozen peas and carrots during the last 5 minutes of cooking.
Remove from heat, rest covered for 5 minutes, fluff rice, garnish with parsley, and serve.