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Kaleb Wyse wearing a black shirt standing in front of a taupe background.

Why I Love to Make This Chicken, Zucchini & Rice Casserole

A weeknight meal works best when it uses pantry staples we have on hand. This recipe uses chicken breasts that I always have in my freezer and can defrost at any time. This is a casserole, and I had to ask myself, is there still a place for casseroles in our life? I grew up in an era where casseroles used canned condensed soups and ended up heavy and gloppy. This is a new and fresh take using the abundance of the summer season to create a hearty meal. The key is marinating the chicken to ensure a big flavor and moist meat. The chicken needs to be precooked before the zucchini, and then it all comes together with rice and some cheese. Casseroles will always fill a void for a perfect weeknight meal. Instead of being bland and heavy, this one is filled with goodness and flavor. Welcome to the new era of casseroles.

Marble surface with serving of chicken zucchini rice casserole sitting on taupe colored plate with fork to the side showing the components of the casserole.
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Everything you’ll need to make this recipe.

  • Lemon juice in the marinade adds brightness to the flavor of the chicken, but since it is acidic, it will help marinate and tenderize the chicken quicker.
  • Olive oil will help coat the chicken but also add a pleasant richness.
  • Dried thyme packs a punch when it comes to flavor, but using a dried herb will ensure that there are no burning or bitter flavors when the chicken is cooked in the skillet.
  • Honey will add some sweetness to the chicken in the casserole, but it also works to help brown the chicken while in the skillet.
White marble surface filled with all ingredients needed to prepare chicken zucchini rice casserole including raw chicken, salt, herbs, zucchini, honey, cheese, and more.

Here’s how to make this recipe.

  1. Prepare the marinade. In a medium bowl, combine the lemon juice, olive oil, black pepper, garlic powder, dried thyme, salt, and honey. Whisk everything together until it is well combined.
  1. Prepare the chicken. Trim any fat off the chicken breasts and dice each breast into bite-sized cubes, about 1 inch in size. Add the diced chicken to the marinade and mix until all of the pieces are well-coated. Cover the bowl and place in the refrigerator for 30 minutes to 1 hour.
  1. Cook the chicken. Heat an oven-safe pan on medium heat. Place the chicken into the pan and let cook until browned on all sides. Once fully cooked, remove the chicken, leaving any extra marinade in the pan.
  1. Cook the zucchini. Chop each zucchini into quarters, then dice it. Add to the same pan that was used to cook the chicken. Chop the garlic and pull the thyme off the stem. Once the zucchini is nearly finished cooking and has some browning on all sides, add the garlic and thyme to the pan. Cook briefly, then take the pan off the heat.
  1. Assemble and bake the dish. Add the rice and chicken into the pan with the zucchini and stir everything together to distribute the rice. Add salt and the Parmesan cheese. In a separate bowl, whisk together the heavy cream, sour cream, and chicken stock. Pour this mixture evenly over the dish. To finish, sprinkle the Monterey jack cheese over the top. Cover the pan and place in the oven at 350°F for 40 to 45 minutes. Remove the cover and bake for another 5 minutes. Serve warm.

These pro tips will make this recipe a success.

  • Leave any extra marinade in the pan after cooking the chicken. The zucchini will soak it up while it cooks, adding extra flavor to the dish.
  • If you have a large zucchini, scoop out any of the interior seeds. This interior can be somewhat watery and contain excess moisture that would seep out into the casserole, which is not desirable.
  • Wait to add in the garlic and fresh thyme until the zucchini is nearly done cooking. Otherwise, the garlic can quickly be overcooked and tend to burn, creating a bitter taste. It just needs about 30 seconds to 1 minute to be mixed in and warmed.
  • Make sure to add any residual juices from the chicken that were collected on the bottom of the plate while the chicken was resting. This is an immense flavor and will be ideal in the casserole.
  • Broil the dish for a few minutes at the end of baking in the oven to help melt the cheese and achieve a golden-brown crust on top.
Large gray-colored braiser sitting on marble surface with cooked chicken zucchini rice casserole inside with serving removed showing ingredients.

Follow These Tips

Serving

Scoop into bowls and garnish with fresh herbs or a squeeze of lemon. It’s filling on its own, but can also be served with a light salad.

Storage

Store in an airtight container for up to 4 days. Alternatively, freeze in portions for up to 2 months.

Frequently asked questions about this recipe.

Could other vegetables besides zucchini be used in this dish?

Yes! Carrots, broccoli, cauliflower, spinach, and kale could all be used instead of zucchini. The process for cooking the vegetable will need to change slightly depending on which is used.

Would other types of meat work instead of chicken? Would ground chicken work instead?

Yes, ground chicken will work but will not work marinated. The seasonings could be added during cooking. Sausage would also work instead of chicken or no meat at all.

Can this dish be assembled and baked later?

The chicken and zucchini can be cooked and prepared ahead. Wait to put the remaining ingredients together until it is time to bake so the rice does not absorb the liquid and change the baking time.

How long does this recipe last after it’s baked?

The leftovers need to be stored in an airtight container in the refrigerator and will keep for 7 to 10 days.

More summer weeknight dinners

Have I Convinced You to Make This Recipe?

I hope you make this recipe and put some food on your table. Leave a comment and share a star rating so you can let others know how much you love this recipe. This helps show others that this is a recipe they, too, can make, enjoy, and love!

Chicken, Zucchini & Rice Casserole

4.97 from 26 votes
Bringing together chicken, zucchini, and rice, this hearty dish is perfect for a family or group meal, or just for leftovers! A lemon, honey, and olive oil marinade creates a bright yet rich flavor. Rice cooked in chicken stock and cream adds depth, while a cheese topping gives it a melty texture that finishes off a great summer dish.
Prep: 15 minutes
Cook: 1 hour
Marinating Time: 30 minutes
Total: 1 hour 45 minutes
Servings: 8 servings
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Ingredients

For the marinade

  • ¼ cup fresh lemon juice
  • ½ cup olive oil
  • ½ tsp freshly ground black pepper
  • 1 tsp garlic powder
  • 1 tsp dried thyme
  • 2 tsp kosher salt
  • 1 tbsp honey

For the casserole

  • 1 lb (about 2 large) chicken breast
  • 1 ½ lb (about 1-2 medium) zucchini
  • 2 sprigs fresh thyme
  • 2 cloves garlic minced
  • 1 ½ cups uncooked jasmine rice
  • 1 ¼ cups chicken stock
  • ¾ cup heavy cream
  • ¾ cup sour cream
  • ½ tsp kosher salt
  • ½ cup grated Parmesan cheese
  • 1 ¼ cup shredded Monterey Jack cheese

Instructions 

For the marinade

  • In a medium bowl, combine the lemon juice, olive oil, black pepper, garlic powder, dried thyme, kosher salt, and honey. Mix to combine.
    ¼ cup fresh lemon juice, ½ cup olive oil, ½ tsp freshly ground black pepper, 1 tsp garlic powder, 1 tsp dried thyme, 2 tsp kosher salt, 1 tbsp honey
  • Cut the chicken into roughly ½-inch cubes. Add the cubed chicken to the marinade and stir to evenly coat all of the chicken. Cover and marinate the chicken in the refrigerator for 30 minutes or up to 1 hour.
    1 lb (about 2 large) chicken breast

For the casserole

  • Preheat the oven to 350°F.
  • Prepare the zucchini by slicing them in half crosswise, then in half lengthwise. Chop each piece into ½-inch thick pieces and set them aside.
    1 ½ lb (about 1-2 medium) zucchini
  • Once the chicken is marinated, heat an oven-safe 12-inch skillet or brasier over medium heat. Add the chicken and discard the remaining marinade. Sauté the chicken until it is browned and cooked, reaching 160°F, 6-8 minutes. Once cooked, remove the chicken from the skillet and set it aside.
  • Add the prepared zucchini to the hot skillet. Sauté the zucchini until it begins to brown, 4-6 minutes. Add the minced garlic and thyme leaves. Stir and remove the dish from the heat.
    2 cloves garlic, 2 sprigs fresh thyme
  • To the skillet or brasier, pour in the chicken and rice and evenly incorporate. In a separate bowl, combine the chicken stock, sour cream, and heavy cream. Whisk until smooth and pour over the rice. Stir the casserole together and season with salt. Sprinkle with the Parmesan cheese and Monterey jack cheese. Cover the skillet with foil or a lid and place in the preheated oven. Bake until the rice is tender, 40-45 minutes. Once the rice is tender, remove the lid and bake until the cheese is browned, 5 minutes.
    1 ½ cups uncooked jasmine rice, 1 ¼ cups chicken stock, ¾ cup heavy cream, ¾ cup sour cream, ½ tsp kosher salt, ½ cup grated Parmesan cheese, 1 ¼ cup shredded Monterey Jack cheese
  • Remove the skillet from the oven and serve.

Video

YouTube video

Notes

  • Leave any extra marinade in the pan after cooking the chicken. The zucchini will soak it up while it cooks, adding extra flavor to the dish.
  • If you have a large zucchini, scoop out any of the interior seeds. This interior can be somewhat watery and contain excess moisture that would seep out into the casserole, which is not desirable.
  • Wait to add in the garlic and fresh thyme until the zucchini is nearly done cooking. Otherwise, the garlic can quickly be overcooked and tend to burn, creating a bitter taste. It just needs about 30 seconds to 1 minute to be mixed in and warmed.
  • Make sure to add any residual juices from the chicken that were collected on the bottom of the plate while the chicken was resting. This is an immense flavor and will be ideal in the casserole.
  • Broil the dish for a few minutes at the end of baking in the oven to help melt the cheese and achieve a golden-brown crust on top.

Nutrition

Serving: 1 servingCalories: 576 kcal

Nutrition information is automatically calculated, so should only be used as an approximation.

Did you make this? Leave a comment below!

Kaleb Wyse is a New York Times bestselling author behind the popular Wyse Guide website. Living on his fourth-generation Iowa farm, he loves sharing recipes and gardening tips that come from traditions that feel comfortably familiar. His down-to-earth style makes sustainable living and farm life feel like home!

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28 Comments

  1. Margie Giorgi says:

    This dish looks so good! I will definitely be making this dish!!

  2. Suzanne Elizabeth Weisgerber says:

    5 stars
    My husband really hates squash of any kind. I like zucchini and yellow squash. I made this last night because I have gobs of squash growing in my food forest. My husband loved it so much he took leftovers for breakfast this morning! I had everything but the Monterey jack cheese. Used havarti instead. It was delish! Rice was slightly hard after 50 min in the oven and chicken over done. I may use cooked rice next time, or brown the uncooked rice in the pan first.

  3. Cathy says:

    5 stars
    I came across your site recently and have been binging your videos. I live your content. I made this tonight and it is wonderful. I might cut the recipe in half next time since I am cooking for just me and my husband.

  4. Linda Letlow says:

    This was delicious! The perfect balance of flavors, quick and easy for a weeknight meal!

  5. Michelle Ross says:

    5 stars
    Hello! I made this dish last night and we absolutely loved it! The flavors are spot on and go perfectly together! Your recipes are the best!

  6. Christelle D. says:

    5 stars
    This dish tasted delicious. I cooked it in my dutch oven and it took me an additional 30 min for the rice to be Fully cooked.

  7. Clare says:

    5 stars
    Really really good and simple enough. Comforting fall transitioning recipe