Season the chicken thighs and drumsticks generously with salt and black pepper on both sides.
In a large skillet or Dutch oven, heat olive oil over medium-high heat. Add the chicken pieces skin side down and cook until golden brown, about 5-6 minutes per side. Remove the chicken from the skillet and set aside.
In the same skillet, add the chopped onion and sauté until softened, about 3-4 minutes. Add the minced garlic and cook for another 1-2 minutes until fragrant.
Stir in the sliced bell peppers and mushrooms, and cook for 5 minutes until they start to soften.
Return the browned chicken pieces back to the skillet, nestling them into the vegetable mixture.
In a bowl, mix together diced tomatoes, tomato paste, chicken broth, red wine, dried oregano, dried basil, dried thyme, and bay leaf. Pour this mixture over the chicken and vegetables in the skillet.
Bring the mixture to a simmer, then reduce the heat to low. Cover and let it simmer gently for about 30-40 minutes, stirring occasionally, until the chicken is cooked through and tender.
Once the chicken is done, taste the sauce and adjust the seasoning with salt and pepper if needed.
Discard the bay leaf. Garnish the Chicken Cacciatore with fresh chopped parsley.
Serve hot over cooked pasta or rice, with crusty bread to soak up the delicious sauce.
Enjoy the hearty flavors of this Authentic Italian Chicken Cacciatore with your loved ones!