Directions

1. Heat oil in a large skillet over high heat. Season chicken with salt and pepper; add to skillet, and brown on all sides, about 10 minutes.
2. Reduce heat to medium; add garlic, oregano, and crushed red pepper to skillet. Cook, stirring constantly, until fragrant, 1 to 2 minutes. Add vinegar; cook, scraping up browned bits from bottom of skillet with a wooden spoon, until liquid has evaporated, 1 to 2 minutes.
3. Add 2 cups water to skillet, and simmer over medium heat 10 minutes. Add bell pepper and artichoke hearts; simmer until chicken is tender and liquid has thickened, 5 to 10 minutes. Remove from heat. Stir in feta cheese, season with salt and pepper as desired, and serve.