Pat your chicken dry then season with salt, garlic powder and onion powder on both sides, GENEROUSLY.
In a large bowl, mix the yogurt, lemon, garlic, dried oregano, salt and pepper to taste. Add the chicken to the bowl and coat the meat. Allow to sit in this mixture, covered in your fridge, for at least 30 minutes or up to 6 hours.
Heat 1 tablespoon of oil on medium, per batch in a large skillet. SCRAPE OFF MOST OF THE YOGURT FROM YOUR CHICKEN. Transfer to your skillet and cook on medium heat until golden brown - about 7 minutes per side. Lower the heat if the meat begins to turn too brown and you still need more cook time.