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    Home » Recipes » Dietary » Light » Chicken Zucchini Casserole

    Chicken Zucchini Casserole

    June 23, 2021 by Valerie Brunmeier

    Jump to Recipe Print Recipe

    This post may contain affiliate links. Please read my disclosure policy.

    A closeup of Chicken Zucchini Casserole with overlay text.
    An over the top shot of Chicken Zucchini Casserole in a white dish with overlay text.
    A closeup of a spoon scooping Chicken Zucchini Casserole with overlay text.

    Tender bites of chicken with perfectly cooked zucchini and bell pepper in a creamy, cheesy sauce. Make use of abundant summer zucchini and get this low carb Chicken Zucchini Casserole on your menu soon!

    A top down shot of a bread crumb topped casserole.

    This Chicken Zucchini Casserole surprised me. When I’m through testing a new recipe, I always jot down a bunch of notes on my tweaks and anything useful to share when it’s published. My final note on this one was “Holy cow, this was so good!”.

    The method for cooking the zucchini ensures it won’t be mushy when baked. The lightened up cheesy sauce is loaded with great flavor. It’s low calorie and low carb and entirely delicious. If you’re looking for tasty ways to introduce your little ones to veggies, this is your recipe.

    A serving spoon scoops up Chicken and Zucchini Casserole.

    Ingredient Notes

    The ingredients for Chicken Zucchini Casserole with overlay text.
    • Olive oil
    • Chicken –  Boneless skinless chicken breast, cut into 1-inch pieces
    • Kosher salt
    • Garlic pepper – I use salt-free McCormick Perfect Pinch Garlic Pepper. Check your label to be sure your brand is salt-free. If not, you’ll need to reduce or eliminate the kosher salt.
    • Zucchini – You’ll need 2 large zucchini cut into ½ -inch pieces
    • Bell pepper – I like to use a combination of red and yellow bell pepper for pretty color contrast.
    • Garlic – Fresh or jarred minced garlic will do.
    • Butter
    • All-purpose flour
    • Chicken broth – I use Better Than Bullion Reduced Sodium Chicken so I can mix up the exact amount I need for each recipe. Whatever brand you choose, be sure it is low sodium.
    • Milk – Whole milk is used instead of heavy cream to make the lightened up cheese sauce.
    • Cream cheese – A little reduced fat cream cheese (⅓ less fat Neufchatel) does a lot to add richness to the sauce.
    • Mozzarella – Shredded part-skim mozzarella cheese.
    • Parmesan – Freshly shredded Parmesan adds a nice salty bite.
    • Pepper – Freshly ground black pepper
    • Seasoned panko – I use Italian style seasoned panko bread crumbs. Any seasoned panko you like should work just fine. The small amount used as a topping adds nice texture and flavor but doesn’t greatly affect the overall carb count. Feel free to omit them if you’d like.

    How to Make Chicken Zucchini Casserole

    Chicken ad vegetables cooking in a skillet and then transferred to a bowl.
    1. Cook the chicken in olive oil and season with a little salt and the garlic pepper. Cook, stirring occasionally, until well browned.
    2. Transfer the chicken to a bowl and set aside.
    3. Add a little more oil to the skillet and the zucchini, bell pepper and garlic. Cook, stirring occasionally, until the vegetables are just beginning to soften. You want them just barely fork-tender so only sauté for about 4 minutes.
    4. Transfer the zucchini mixture to the bowl with the chicken and set aside.
    A white sauce cooks in a skillet and cheese, chicken and zucchini are added.
    1. Add the butter to the empty pan. Stir in the flour and cook, stirring constantly, until the flour starts to brown, about 1 minute.
    2. Whisk in the broth and milk.
    3. Bring to a boil, whisking often to smooth out the sauce as much as possible (a few small lumps are okay).
    4. Remove from the heat and add the cream cheese, mozzarella and Parmesan and stir until melted.
    5. Stir in the remaining salt and the black pepper.
    6. Drain all of the liquid from the chicken and vegetable mixture and stir the mixture into the cheese sauce in the pan. Gorgeous color!
    A chicken and zucchini mixture is baked in a casserole dish.
    1. Transfer the mixture to a baking dish that you’ve coated with nonstick cooking spray.
    2. Top the casserole with the remaining mozzarella and Parmesan.
    3. Sprinkle the panko breadcrumbs evenly over the top.
    4. Bake until the top is browned and the edges are bubbly, 20 to 25 minutes. If desired, set the oven to broil for the last minute of the cooking time to brown the top a little more.
    A close up top down shot of Chicken and Zucchini Casserole.

    Serving Suggestions

    For your family members who aren’t concerned with carbs, Chicken Zucchini Casserole is delicious served with cheese tortellini or your favorite cooked pasta tossed with a little olive oil and Parmesan cheese.

    To keep it low carb, go with Cauliflower Rice, 2 Ingredient Keto Pasta, Instant Pot Broccoli, or Air Fryer Turmeric Roasted Cauliflower.

    A serving of Chicken Zucchini Casserole on a white plate next to a casserole dish.

    More Family Friendly Zucchini Recipes

    • Ground Pork Stir Fry with Zucchini and Mushrooms
    • Italian Stuffed Zucchini Boats
    • Very Veggie Chili
    • Loaded Taco Skillet
    A fork digs into a serving of Chicken and Zucchini Casserole on a white plate.

    A top down shot of a bread crumb topped casserole.

    Chicken Zucchini Casserole

    Valerie Brunmeier
    Tender bites of chicken with perfectly cooked zucchini and bell pepper in a creamy, cheesy sauce. Make use of abundant summer zucchini and get this low carb Chicken Zucchini Casserole on your menu soon!
    5 from 2 votes
    Print Recipe Pin Recipe
    Prep Time 15 mins
    Cook Time 45 mins
    Total Time 1 hr
    Course Main Course
    Cuisine American
    Servings 8
    Calories 328 kcal

    Ingredients
      

    • 1 tablespoon plus 2 teaspoons olive oil divided
    • 2 pounds boneless skinless chicken breast cut into 1-inch pieces
    • 1 teaspoon kosher salt divided
    • 1 teaspoon garlic pepper
    • 2 large zucchini cut into ½ -inch pieces
    • 1 heaping cup chopped red and yellow bell pepper 2 small bell peppers
    • 1 teaspoon minced garlic
    • 2 tablespoons butter
    • ⅓ cup all-purpose flour
    • 1 cup low sodium chicken broth
    • 1 cup whole milk
    • 3 ounces reduced fat cream cheese (⅓ less fat Neufchatel), cut into cubes
    • 1 ¼ cups shredded part-skim mozzarella cheese divided
    • ¼ cup shredded Parmesan divided
    • ½ teaspoon freshly ground black pepper
    • 3 tablespoons seasoned panko bread crumbs I use Italian style

    Instructions
     

    • Preheat oven to 400 degrees F. Coat a 13- x 9-inch baking dish with nonstick cooking spray.
    • Heat the olive oil in a large nonstick skillet over MEDIUM-HIGH heat. Add the chicken to the pan. Season with ½ teaspoon salt and the garlic pepper. Cook, stirring occasionally, until well browned, about 6 to 8 minutes. Transfer the chicken to a medium bowl. Add the remaining 2 teaspoons of oil to the pan and return it to the heat. Add the zucchini, bell pepper and garlic and cook, stirring occasionally, until the vegetables are just barely fork tender, about 4 minutes. Transfer the zucchini mixture to the bowl with the chicken and set aside.
    • Add the butter to the pan. Stir in the flour and cook, stirring constantly, until the flour starts to brown, about 1 minute. Whisk in the broth and milk. Bring to a low boil, whisking often to smooth out the sauce as much as possible (a few small lumps are okay). Remove from the heat and add the cream cheese, ¾ cup mozzarella and 2 tablespoons Parmesan and stir until melted. Stir in the remaining ½ teaspoon salt and the black pepper.
    • Drain all of the liquid from the chicken and vegetable mixture and stir the mixture into the cheese sauce in the pan. Transfer the mixture to the prepared baking dish. Sprinkle the casserole with the remaining ½ cup mozzarella, remaining 2 tablespoons Parmesan, and the breadcrumbs.
    • Bake until the top is browned and the edges are bubbly, 20 to 25 minutes.If desired, set the oven to BROIL for the last minute of the cooking time to brown the top a little more. Remove from the oven and let it rest for 10 minutes before serving.

    Nutrition

    Calories: 328kcalCarbohydrates: 13gProtein: 34gFat: 15gSaturated Fat: 6gPolyunsaturated Fat: 2gMonounsaturated Fat: 6gTrans Fat: 1gCholesterol: 95mgSodium: 729mgPotassium: 720mgFiber: 1gSugar: 5gVitamin A: 1062IUVitamin C: 34mgCalcium: 241mgIron: 1mg
    Keyword Chicken Zucchini Casserole
    Tried this recipe?Let us know how it was!

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    Adapted from Eating Well

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    Filed Under: Light, Low Carb, Main Dishes Tagged With: Chicken, Vegetables

    About Valerie Brunmeier

    Valerie, a long time food blogger and cookbook author, launched Wholesome Made Easy in June of 2020. Her true passion is sharing her experience as a working mom of four to help other busy home cooks create wholesome, delicious meals that take a lighter approach. Her recipes have been featured on Better Homes & Gardens, Good Housekeeping, Redbook, Country Living, Cosmopolitan, Buzzfeed, MSN, Shape Magazine and more.

    Reader Interactions

    Comments

    1. Whitney Mullenax

      August 8, 2021 at 2:15 pm

      5 stars
      This was perfect! I usually stay away from casseroles with zucchini because of their wetness, but this wasn’t wet at all, especially with that nice, thick sauce. My husband and mother-in-law quite enjoyed it too, definitely a keeper.

      Reply
      • Valerie Brunmeier

        August 9, 2021 at 2:12 am

        We love it too! Thanks so much for your comment, Whitney. 🙂

        Reply
    2. Becky

      January 25, 2022 at 4:24 pm

      5 stars
      I will definitely be making this again. I added noodles for my son and husband but I ate this just the way it was (low carb right now). My 6 year old son absolutely loved it and asked to have the leftovers for lunch the next day. Admittedly, my son is not a picky eater but still love making something delicious that also has some vegetables and health protein. I used 1% milk and did not include the panko bread crumbs but otherwise, stuck to the recipe. I think you could easily incorporate other vegetables like mushrooms and spinach.

      Reply
      • Valerie Brunmeier

        February 18, 2022 at 1:42 am

        I’m glad to hear it worked out for the whole family. Thanks, Becky!

        Reply

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