This oven baked 4-ingredient chicken cacciatore casserole is exactly the kind of practical, comforting dinner that earns a permanent spot in a family recipe box. It has that wonderfully retro, no-fuss charm of mid-century home cooking, where a few pantry and freezer staples came together into something hearty enough for company but easy enough for a weeknight. I love recipes like this because they feel like a little window into how busy home cooks made dinner happen long before meal prep became a buzzword.
Serve this saucy chicken over buttered noodles, fluffy rice, polenta, or mashed potatoes so nothing goes to waste. A simple green salad, steamed green beans, or garlic bread rounds it out nicely, and if you're feeding guests, this is the kind of casserole that looks especially inviting set right on the table with a big spoon and a bowl of roasted vegetables on the side.
Oven Baked 4-Ingredient Chicken Cacciatore Casserole
Servings: 6
Ingredients
2 1/2 to 3 pounds bone-in, skin-on chicken pieces
1 jar (24 ounces) spaghetti sauce or marinara sauce
1 package (16 ounces) frozen sliced bell peppers and onions
1 teaspoon dried Italian seasoning
Directions
1. Preheat the oven to 375°F and lightly grease a deep 9x13-inch baking dish.
2. Spread the frozen bell peppers and onions evenly in the bottom of the baking dish, then sprinkle with the Italian seasoning.
3. Arrange the chicken pieces on top of the vegetables in a single layer.
4. Pour the spaghetti sauce evenly over the chicken, covering the pieces as much as possible.
5. Cover tightly with foil and bake for 45 minutes. Uncover and bake 20 to 25 minutes more, until the chicken is very tender and reaches 165°F in the thickest part.
6. Let the casserole rest for 5 to 10 minutes before serving, then spoon the sauce and vegetables over the chicken.
Variations & Tips
Use boneless chicken: Boneless skinless chicken thighs work beautifully here and stay especially tender. Start checking for doneness about 10 minutes earlier since they can cook faster than bone-in pieces.
Make it more pantry-friendly: If you do not have frozen peppers and onions, use 1 sliced onion and 2 sliced bell peppers instead. This is a great clean-out-the-fridge dinner when produce is starting to soften.
Add extra flavor: A handful of sliced mushrooms, a few cloves of minced garlic, or a pinch of red pepper flakes can be added without changing the spirit of the original recipe. If your sauce is very thick, add a splash of chicken broth so everything stays nice and spoonable.
Meal prep tip: You can assemble the casserole a few hours ahead, cover, and refrigerate until ready to bake. For busy weekdays, that kind of head start makes dinner feel much more manageable.
Serving tip: If you want a more classic cacciatore feel, spoon the finished chicken and sauce over spaghetti or creamy polenta and top with a little chopped parsley just before bringing it to the table.