For the chicken and the sauce
For the potatoes
Prep. Preheat the oven to 425˚F and line a baking sheet with parchment paper.
Season the potatoes. In a medium-sized mixing bowl, combine the potatoes, salt, ground black pepper, oregano, olive oil, and lemon juice. Toss to coat the potatoes evenly.
Roast. Arrange the potatoes in a single layer on the prepared baking sheet and bake for 25 minutes or until golden brown and easily pierced with a fork.
For the chicken and the sauce
Season the chicken with salt, ground black pepper and oregano.
Sear the chicken. Heat the olive oil in a large heavy-bottomed skillet over medium-high heat. Add the chicken thighs, skin side down. Cook for 2 to 3 minutes or until the skin is golden brown. Flip the chicken and cook for an additional 2 minutes. Remove the chicken from the pan and set aside, leaving the drippings in the pan.
Saute the garlic. Add the butter to the pan. Once it has melted, add the garlic cloves and sauté until aromatic.
Make the sauce. Add the chicken stock to the pan. Bring the mixture to a boil, scraping any browned bits from the bottom of the pan. Add the white wine and cook until evaporated, about 3 minutes. Reduce the heat to low.
Finish cooking the chicken. Return the chicken to the pan and squeeze the lemon juice over it. Cover and simmer for 15 minutes. Add the frozen peas. Cover and simmer for an additional 10 minutes or until the juices from the chicken thighs run clear.
Serve. Serve the chicken and peas over the potatoes with the sauce and garnish with fresh parsley.