Preheat oven to 425 degrees F. Lightly oil a baking sheet or coat with nonstick spray.
Place potatoes in a single layer onto the prepared baking sheet. Add olive oil; season with salt and pepper, to taste. Gently toss to combine.
Place into oven and bake for 30-35 minutes, or until golden brown, stirring halfway. Set aside and keep warm.
Season chicken thighs with 3/4 teaspoon salt and 1/2 teaspoon pepper.
Melt butter in a Dutch oven over medium heat. Working in batches, add chicken, skin-side down, and sear both sides until golden brown, about 2-3 minutes per side; set aside. Drain excess fat, reserving 2 tablespoons in the Dutch oven.
Add shallot, and cook, stirring occasionally, until tender, about 3-5 minutes. Stir in garlic and oregano until fragrant, about 1 minute.
Whisk in flour until lightly browned, about 1 minute.
Stir in chicken stock and wine, scraping any browned bits from the bottom of the Dutch oven. Return chicken to the skillet.
Place into oven and bake until chicken has completely cooked through, reaching an internal temperature of 165 degrees F, about 12-15 minutes.
Stir in peas and lemon juice until heated through, about 1 minute; season with salt and pepper, to taste.
Serve immediately with potatoes, garnished with parsley, if desired.
Notes
Use a heavy pot. A heavy bottom pot, such as a Dutch oven, is ideal here for even heat distribution. A tight fitting lid also traps all the lovely moisture inside, yielding the most tender, juicy chicken.
Bone-in is ideal. While boneless, skinless chicken thighs can be used with a shorter cooking time, bone-in will be juicier and have extra flavor. Cut up whole chicken can also be used here.
Brown the chicken first. This will add all the extra, deeper flavors here, sealing all the juices inside, and keeping the chicken nice and crisp while baking.
Use good-quality stock. The better quality your stock, the better your chicken vesuvio. Many brands love to pack in the salt so always opt for unsalted or a lower-sodium variety. Homemade stock is even better.
Choose a wine you will drink. A dry white wine (pinot grigio or sauvignon blanc) is great here – it does not have to be anything fancy or overpriced. Just something you don’t mind sipping on since you will have an open bottle.
Add in leafy greens. This is a great recipe to sneak in leafy greens for those picky eaters. Swap out the peas for spinach, kale, collard greens, swiss chard, or arugula.
Add freshly squeezed lemon juice. Lemon juice will add fresh, bright flavors, balancing out all the saltiness and richness of the dish.
Mix it up. Add in different vegetables such as mushrooms, bell peppers, artichoke hearts, carrots or green beans.
Serve with crusty bread. Serve with all the homemade crusty bread for dipping, sopping and dunking!