01 -
Pat dry the chicken breasts with a paper towel. Cut each chicken breast lengthwise through the center.
02 -
Season both sides with onion, garlic, oregano, salt, and black pepper. Sprinkle lemon zest all over the chicken breasts.
03 -
Heat a skillet over medium-high heat. Add the canola/avocado/sunflower oil. Sear chicken breasts for 5 minutes on each side until cooked. If the chicken starts burning, lower the heat a little bit.
04 -
Remove from the skillet and rest for 5 minutes before serving. Add butter or olive oil on top for more flavor, and squeeze a little bit of lemon juice all over.