This Italian chicken and peppers recipe is a practical weeknight dinner that comes together in one pan with about 15 minutes of hands-on prep. Chicken pieces and sliced bell peppers simmer in a rich marinara sauce until the chicken is tender and the peppers are soft and slightly sweet.

Why You’ll Love This Recipe
- Simple cleanup: Everything cooks in one pan or baking dish.
- Pantry-friendly ingredients: Most of the list is staples you may already have.
- Tender chicken: Simmering in sauce keeps the chicken moist.
- Flexible: Swap in different peppers or add pasta, rice, or vegetables.
Ingredients
- 1 1/2 lb (680 g) boneless, skinless chicken thighs or breasts, cut into bite-size pieces
- 3 bell peppers (red, yellow, or green), sliced into strips
- 1 medium yellow onion, thinly sliced
- 4 cloves garlic, minced
- 2 tbsp (30 ml) olive oil
- 1 tsp (5 g) Italian seasoning
- 1/2 tsp (3 g) salt, plus more to taste
- 1/4 tsp (0.5 g) black pepper
- 1 jar (24 oz / 680 g) marinara sauce
- Optional: 4 oz (115 g) shredded mozzarella and fresh basil for serving
Quantities are estimates for a 4-serving batch. Adjust to your pan size.
Equipment You’ll Need
- Large deep skillet or 12-inch (30 cm) oven-safe skillet with a lid
- Cutting board and sharp knife
- Wooden spoon or spatula
How to Make Italian Chicken and Peppers
- Season the chicken. Pat the chicken dry with paper towels. Toss it with salt, pepper, and half of the Italian seasoning.
- Brown the chicken. Heat the olive oil in the skillet over medium-high heat. Add the chicken in a single layer and cook for 3 to 4 minutes, until the bottoms are golden. Flip and cook 2 to 3 more minutes. The chicken does not need to be cooked through yet. Transfer it to a plate.
- Cook the vegetables. Reduce the heat to medium. Add the onion and peppers and cook 5 to 6 minutes, stirring occasionally, until they begin to soften and pick up some browning at the edges.
- Add the garlic. Stir in the garlic and the remaining Italian seasoning and cook about 30 seconds, until fragrant.
- Add the sauce. Pour in the marinara and stir, scraping up any browned bits from the bottom of the pan. Return the chicken and any juices to the skillet and stir to coat.
- Simmer. Bring the sauce to a gentle bubble, then cover and reduce the heat to medium-low. Simmer 15 to 20 minutes, stirring occasionally, until the chicken is cooked through and reaches 165°F (74°C) in the thickest piece. Cooking time will vary with the size of your chicken pieces.
- Finish. If using, sprinkle the mozzarella over the top, cover for 2 to 3 minutes until melted, then garnish with basil. Taste and adjust salt before serving.
Pro Tips for the Best Results
- Sear the chicken in batches if your pan is crowded. Overcrowding causes the chicken to steam instead of brown.
- Cut the peppers into strips of similar thickness so they cook at the same rate.
- Use a meat thermometer rather than relying on color. Chicken thighs are more forgiving than breasts.
- Choose a marinara with a fresh, simple flavor. Heavily sweetened sauces can make the dish taste flat.
- If the sauce looks too thick, add 2 to 4 tablespoons of water and stir.
Common Mistakes to Avoid
- Skipping the browning step: Browned chicken adds deeper flavor to the sauce.
- Overcooking the peppers: Stop when they are tender but still hold their shape.
- Serving undercooked chicken: Always check the internal temperature. Do not rely only on the color of the meat.
Variations and Substitutions
- Serve over pasta: Add cooked penne or rigatoni directly to the skillet.
- Add mushrooms: Sliced cremini mushrooms work well with the peppers.
- Make it spicy: Add a pinch of red pepper flakes with the garlic.
- Use a different protein: Sliced sausage or chicken tenderloins can replace the chicken.
Serving Suggestions
Serve the chicken and peppers over pasta, creamy polenta, or rice to soak up the sauce. Crusty bread and a simple green salad make a complete meal.
Storage and Reheating
Store leftovers in an airtight container in the refrigerator for up to 3 to 4 days. Reheat in a skillet over medium-low heat, adding a splash of water if the sauce has thickened. Freezing is possible for up to 2 to 3 months, though the peppers may soften more after thawing.
Frequently Asked Questions
Can I make this in the oven?
Yes. Arrange the seasoned chicken and vegetables in a baking dish, pour the sauce over the top, and cover with foil. Bake at 400°F (200°C) for about 35 to 45 minutes, until the chicken reaches 165°F (74°C). Baking times are estimates and depend on your dish and chicken size.
Can I use chicken breasts instead of thighs?
Yes. Breasts are leaner and can dry out, so watch them closely and avoid overcooking. Thighs stay more tender during simmering.
Can I make this ahead of time?
Yes. The dish tastes even better after the flavors meld. Cool it, refrigerate it, and reheat it gently when ready to serve.
Why is my chicken dry?
Chicken often dries out when it simmers too hard or cooks past the target temperature. Keep the sauce at a gentle bubble and remove the chicken as soon as it reaches 165°F (74°C).
Can I use fresh tomatoes instead of marinara?
You can, but you will need to cook them down longer to thicken the sauce. Jarred marinara is the simplest option for a weeknight.
Recipe Card
Recipe Name: Effortless Italian Chicken and Peppers
Short Description: A simple one-pan Italian chicken dinner with bell peppers simmered in marinara sauce.
Prep Time: 15 minutes
Cook Time: About 35 minutes
Total Time: About 50 minutes
Servings: 4
Course: Dinner
Cuisine: Italian-American
Cooking Method: Skillet simmering
Ingredients: 1 1/2 lb (680 g) boneless, skinless chicken; 3 bell peppers, sliced; 1 medium onion, sliced; 4 cloves garlic, minced; 2 tbsp (30 ml) olive oil; 1 tsp (5 g) Italian seasoning; 1/2 tsp (3 g) salt; 1/4 tsp (0.5 g) black pepper; 1 jar (24 oz / 680 g) marinara sauce; optional 4 oz (115 g) mozzarella and fresh basil.
Instructions: Season and brown the chicken, cook the onion and peppers, add garlic and marinara, then simmer covered until the chicken reaches 165°F (74°C).
Notes: Quantities are estimates. Adjust sauce and seasoning to taste.
Storage: Refrigerate up to 3 to 4 days or freeze up to 2 to 3 months.
Nutrition information is an estimate and may vary depending on the ingredients and brands used.



