A Simple Old-Fashioned Chicken Dinner Everyone LovesThis oven-baked 4-ingredient chicken cacciatore casserole is the kind of recipe that feels like it came straight from a treasured family cookbook. With simple pantry ingredients, tender chicken, and a rich tomato sauce, this dish delivers classic homemade comfort with very little effort.Inspired by traditional family casseroles, this recipe is perfect for busy weeknights, Sunday dinners, and gatherings. The chicken slowly bakes in a flavorful tomato sauce with peppers, creating a meal that fills the kitchen with an irresistible aroma.The best part is that you only need a few ingredients to create a hearty dinner that tastes like it took much longer to prepare.Why You’ll Love This Chicken Cacciatore CasseroleOnly 4 main ingredientsEasy one-pan preparationTender, flavorful chickenRich tomato and herb saucePerfect for family dinnersGreat served over pasta, rice, or noodlesThis recipe is simple, comforting, and satisfying enough to become a regular favorite.Oven-Baked 4-Ingredient Chicken Cacciatore CasseroleServings: 4–6Ingredients2 to 2½ pounds bone-in chicken pieces (thighs and drumsticks, skin-on or skinless)1 large green bell pepper, seeded and sliced1 can (28 ounces) crushed tomatoes or tomato puree1 packet (0.7–1 ounce) dry Italian salad dressing mixOptional Ingredients1 tablespoon olive oil or softened butter for greasing the dishSalt and black pepper to tasteHow to Make Chicken Cacciatore CasseroleStep 1: Prepare the Oven and Baking DishPreheat your oven to 375°F (190°C).Lightly grease a glass baking dish with olive oil or butter for easier cleanup.Step 2: Prepare the ChickenPat the chicken pieces dry with paper towels. This helps the chicken cook evenly and allows the sauce to coat the pieces better.Season lightly with salt and pepper if desired. Remember that the Italian dressing mix already contains seasoning.Step 3: Arrange the IngredientsPlace the chicken pieces in the baking dish in a single layer with the meaty side facing up.Add the sliced green peppers around and between the chicken pieces. The peppers will soften and absorb the flavors from the sauce while baking.Step 4: Make the Tomato SauceIn a bowl, combine the crushed tomatoes and dry Italian salad dressing mix.Stir until well blended.Pour the tomato mixture evenly over the chicken and peppers, making sure everything is covered with the flavorful sauce.Step 5: Bake the CasseroleCover the dish tightly with foil.Bake for 45 minutes.Carefully remove the foil and spoon some of the sauce over the chicken pieces.Return the casserole to the oven uncovered and bake for another 20–30 minutes, until the chicken is tender and fully cooked.The chicken should reach an internal temperature of 165°F (74°C).Step 6: Rest and ServeAllow the casserole to rest for 5–10 minutes before serving.This helps the juices settle and allows the sauce to thicken slightly.Serve generous portions of chicken, peppers, and tomato sauce over your favorite side dish.Best Side Dishes for Chicken CacciatoreThis flavorful casserole pairs perfectly with:Buttered egg noodlesSpaghettiWhite riceMashed potatoesGarlic breadCrusty dinner rollsGreen saladSteamed green beansThe extra tomato sauce is perfect for soaking into pasta or bread.Easy Variations and TipsFor a sweeter flavor, replace green peppers with red or yellow bell peppers. They add a mild sweetness and beautiful color.You can also add sliced mushrooms for a richer, more traditional cacciatore-style dish.For extra Italian flavor, sprinkle shredded mozzarella or Parmesan cheese on top after baking and let it melt before serving.Boneless chicken thighs can also be used. They cook faster, so check them earlier to prevent overcooking.Storage and ReheatingStore leftovers in a covered container in the refrigerator within 2 hours of cooking.The casserole will stay fresh for 3–4 days.Reheat leftovers until hot throughout. The flavors often become even better the next day as the sauce continues to develop.Final ThoughtsThis oven-baked chicken cacciatore casserole is proof that simple ingredients can create unforgettable meals. With tender chicken, rich tomato sauce, and classic Italian-inspired flavors, it is the kind of recipe families keep coming back to for years.