Preheat oven to 375ºF.
In a large skillet, heat about 1/4 cup EVOO, 4 turns of the pan, over medium-high heat. Add the potatoes and garlic; season with the oregano, crushed red pepper flakes and lots of salt and pepper. Cook, turning occasionally, until browned, about 15 minutes.
Meanwhile, in a large, ovenproof skillet, heat a couple of tablespoons of EVOO, two turns of the pan, over medium-high heat. Season the chicken liberally with salt and pepper and coat in flour. Brown the chicken on each side until golden, 3-4 minutes. Deglaze the pan with the wine and stock. Stir in the peas.