Jump to RecipeJump to VideoLeave a ReviewPin Recipe

Disclosure: This post may contain affiliate links. I may earn a small commission for my endorsement, recommendation, testimonial, and/or link to any products or services from this website.

Did you get a new Instant Pot for Christmas? Or are you a die-hard fan of the old-school Crock Pot? Either way, you can enjoy this easy Slow Cooker or Instant Pot Chicken with Peppers and Onions for a healthy Italian-inspired dinner!

Overhead image of bowl of pasta with Italian chicken and peppers and onions

I finally bit the bullet and bought myself a pressure cooker when I couldn’t pass up a great Black Friday deal. But then the challenge was on — I had to figure out how to use the thing!

I’ve done some experimenting in the kitchen over the past few weeks, and I’ve found a great Instant Pot Chicken recipe that I can confidently share with you! But don’t worry — you definitely don’t need a pressure cooker in order to prepare this meal. It works beautifully in the slow cooker, too!

So What’s In This Chicken With Peppers Dish?

  • Boneless chicken breasts or thighs
  • Bell peppers
  • Garlic
  • Mushrooms
  • Onions
  • Italian Seasoning
  • Tomato paste & sauce
  • Red pepper flakes

Italian chicken breast with sliced red peppers on a spoon in the Instant Pot

Now that I think about it, this Instant Pot chicken with peppers is actually a lot like Chicken Cacciatore. The tender boneless, skinless chicken breasts are swimming in a tomato-based broth that’s loaded with nutritious veggies and Italian seasonings.

How To Serve This Chicken With Peppers For A Delicious Meal

No matter what you call it, this dish is so darn versatile! You can serve it over pasta or rice (or over zucchini noodles or cauliflower rice for grain-free options). If you use a slotted spoon and leave most of the broth in the pot, you can serve the chicken and veggies on top of hoagie rolls (toasted with melted Provolone, of course!), or on top of flatbread or pizza.

Best of all, it’s an easy and healthy slow cooker or Instant Pot chicken dinner that the whole family will love!

Overhead photo of two bowls of pasta with Instant Pot Chicken with Peppers Onions and Mushrooms

Cook’s Tips

  • If using a slow cooker – If you have time to sear the chicken in a hot skillet for a few minutes per side before placing it in the slow cooker, I think that gives the meat great flavor. If you don’t have time to brown the chicken first, that’s okay too!
  • You can prep this meal in advance and store in the fridge for 1-2 days. This can also be frozen too, store in suitable containers.
  • If you have extra veggies that need using up then feel free to add them to this dish it’s very versatile. Why no try zucchini, fennel or carrots.

Looking for more easy Instant Pot recipes? Try these:

Slow Cooker or Instant Pot Chicken with Peppers and Onions

4.34 from 3 votes
Prep: 10 minutes
Cook: 7 minutes
Heating Time (Pressure Cooker) 10 minutes
Total: 35 minutes
Servings 8 servings
Calories 219 kcal
Enjoy this easy Slow Cooker or Instant Pot Chicken with Peppers and Onions for a healthy Italian-inspired dinner!


  • 2.5 lbs. boneless, skinless chicken breasts or thighs
  • 1 Tablespoon olive oil
  • 2 red bell peppers seeded and sliced
  • 1 sweet onion sliced
  • 3 cloves garlic, peeled and smashed
  • 8 ounces sliced mushrooms
  • 2 teaspoons Italian seasoning
  • 2 Tablespoons tomato paste
  • 8 ounces tomato sauce
  • ½ teaspoon crushed red pepper add more for a spicy dish or omit entirely for a mild dish
  • Salt and pepper
  • Garnish: 1/2 cup chopped fresh basil or fresh parsley
  • For serving: pasta, rice, zucchini noodles, or cauliflower rice, etc.


  • Season chicken with 3/4 t. salt on both sides. Set aside.
  • Press “sear” or “sauté” on the pressure cooker. Add oil to the pot. When the oil is shimmering, add peppers, onions, mushrooms, and 1/2 teaspoon salt. Sauté until soft (about 3-5 minutes). Stir in garlic, tomato paste, and Italian seasoning. Cook for 30 more seconds. Turn off sear function.
  • Add chicken and tomato sauce. Stir. Close the top properly and select “Poultry” or “Manual” setting. Set the time to 7 minutes for fresh chicken breasts (if using large chicken breasts, cut them in half), or 10 minutes for thighs.
  • When done, release the steam and remove the lid right away to prevent overcooking. Stir in chopped fresh basil or parsley, season with crushed red pepper, and add salt and pepper, to taste.
  • Use a slotted spoon to serve chicken and vegetablesover pasta, rice, zucchini noodles, or cauliflower rice, if desired. The meat is also great in hoagies (toasted with melted cheese on top) or as a topping on pizza or flatbread. The sauce is thinner than a typical marinara, so I like to use a slotted spoon when serving. Enjoy!


Alternative slow cooker method:
If you have time to sear the chicken in a hot skillet for a few minutes per side before placing it in the slow cooker, I think that gives the meat great flavor.  If you don't have time to brown the chicken first, that's okay too! 
Place all ingredients in a slow cooker and stir to combine.
Cover and cook on “LOW” setting for 3-4 hours, or until chicken is cooked through. Season with salt and pepper, to taste. Serve chicken, vegetables, and sauce with a slotted spoon over pasta, rice, zucchini noodles, or cauliflower rice, if desired. The meat is also great in hoagies (toasted with melted cheese on top) or as a topping on pizza or flatbread. Garnish with fresh herbs just before serving.


Serving: 1/8 of the recipeCalories: 219kcalCarbohydrates: 8gProtein: 32gFat: 5gSaturated Fat: 1gCholesterol: 90mgSodium: 352mgPotassium: 871mgFiber: 2gSugar: 5gVitamin A: 1205IUVitamin C: 45.5mgCalcium: 33mgIron: 1.5mg
Keyword: Healthy Instant Pot Chicken, instant pot chicken recipe
Course: Dinner
Cuisine: Italian
Author: Blair Lonergan

This recipe was originally published in January, 2018. It was updated in September, 2018.


Hey, I’m Blair!

Welcome to my farmhouse kitchen in the foothills of Virginia’s Blue Ridge Mountains. Inspired by local traditions and seasonal fare, you’ll find plenty of easy, comforting recipes that bring your family together around the table. It’s down-home, country-style cooking!

Read More

Square overhead shot of hands serving a chicken pot pie recipe with biscuits
Overhead image of a bowl of chili mac on a dinner table with cornbread
Hands serving a platter of sheet pan sausage and potatoes

Leave a Comment

Your email address will not be published. Required fields are marked *

Recipe Rating

This site uses Akismet to reduce spam. Learn how your comment data is processed.


  1. I got an instant pot on Black Friday too and I’ve been having fun experimenting with it! This chicken looks delicious and so easy! Love the peppers and onions in here to give it some flavor. What a perfect weeknight meal!

  2. I’m making this tonight serving with zucchini noodles. I am thinking about cutting up the chicken into bite sized pieces prior to cooking. Thoughts?

    1. That should work fine, but the chicken will probably cook a bit faster, so you may want to decrease the total cooking time. 🙂

  3. 5 stars
    Hi, I just bought an instant pot nova plus and this was my first recipe! I wanted to use a huge zucchini from the garden and had 2 large chicken breasts (27 oz) on hand, which I cut into pieces. I substituted the peppers and mushrooms with the zucchini and used a can of diced tomatoes. The vidalia was huge. Everything else was the same. Used fresh basil from the garden. It turned out well but a lot of liquid. Served over rotini like the picture and added Parmesan with the basil. If you have suggestions, I’d appreciate it. We all loved it despite all the liquid. Thank you for this recipe that was a guide for me.
    p.s. I selected “pressure cook” on high for 8 minutes, and did the “natural release” for 8 minutes before venting. I have no idea what I’m doing, haha, but it turned out well.

    1. Hi, Debbie! I’m so glad that you started with this recipe! Yes, I have found that some of these IP recipes have quite a bit of liquid (similar to slow cooker recipes) because of the condensation in the pot. You can decrease the liquid that you add at the beginning, but you need a certain amount of liquid in order for the pot to work properly. It uses the steam to come to pressure, so without that liquid it just won’t work. My best suggestion in this case is to either decrease the liquid by a small amount and/or just serve the dish with a slotted spoon! 🙂

  4. I was disappointed I’m afraid. I followed this to the letter but found it watery and somewhat tasteless. Also, I was surprised that the chicken breasts were tough – that has not been my experience with my instant pot meals. Not sure what happened.

    1. Hi, Phyllis! Bone-in chicken requires a bit more time than boneless pieces. If you’re using bone-in thighs, you will need about 4-6 hours on LOW. For bone-in breasts, I suggest 6-8 hours on LOW. Enjoy!

  5. I tried chicken thighs for 10 minutes and had a slightly burned bottom of the pot. I think next time I would add 1/4 cup more liquid and only cook for 8 minutes.

  6. 3 stars
    The chicken and peppers had a good taste to it, but could have had more flavor. And it was more like a broth rather than sauce-like, so I seasoned the noodles with butter and garlic salt as plain would have been a bland side

    1. Hi, Karen! I think my pot is 6-7 quarts, but it shouldn’t change the cooking instructions to use one that’s bigger. 🙂

  7. 5 stars
    This was delicious! A great way to use up peppers I feared wouldn’t last much longer. I didn’t have mushrooms and did have one extra pepper (one each red, orange, and yellow), so we were pepper-heavy. Yummy, nonetheless!
    Thanks so much for a great recipe!