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The Best Chicken Zucchini Casserole Ever !

What does your favorite dish have in common with your favorite dish? Zucchini and chicken. Yep, we got that right. This casserole is the perfect way to show off your culinary skills and impress everyone who meets you. Plus, it’s easy to make. So go ahead and make us one of your favorite dishes!

The Best Chicken Zucchini Casserole Ever

The ingredients you need for this easy and delicious dish

Zucchini and chicken are teamed up for an easy and delicious dish that is perfect for any party! This casserole is made with all of the ingredients you need! And it’s not just a one-time deal, either; make this dish again and again for sure!

  • 3-4 boneless, skinless, chicken breasts- This will be roughly 1.5- 2 lbs package.  Trim the chicken breast to prep.
  • 1/4 tsp salt
  • 1/4 tsp pepper
  • 1/4 tsp garlic powder- These will all be used to season the chicken breast before putting on the veggies.  You can use more or less salt pepper and garlic to your personal tastes.  I actually don’t measure these usually, I just sprinkle them on, so feel free just to do this by feel.
  • 1 medium zucchini-
  • 1 medium yellow squash- You can use zucchini and squash here or just use 2 of either.  I love the color of using both, but if you just have one on hand you can easily just use that one.
  • 1/2 medium sweet yellow onion- I prefer yellow onion in this because they get nice and sweet once cooked, but you can use another variety like white or red if you prefer.
  • 1/2 cup pesto, prepared- I usually buy this at Costco or Sam’s Club in a large jar in the refrigerated section.  You can also find prepared pesto in most regular grocery stores near the refrigerated pasta and sauces.  I really prefer refrigerated pesto over non-refrigerated jarred pasta.
  • 4 oz parmesan cheese- make sure you get fresh grated, not the powder kind.
  • 4 oz mozzarella- You can blend 4 oz of each parmesan and mozzarella or use 8 oz of an Italian cheese blend in lieu of the separate cheeses.

The steps you need to take to make this Chicken Zucchini Casserole

  1. Preheat the oven to 375˚F.
  2. Chop the zucchini, squash, and onion and combine. Chop the zucchini and squash in half length-wise then half each of the halves again length-wise.  Then chop the spears into roughly 1 in pieces.  The onion should be cut in pieces similar in size and then separated so that it can cook evenly. Once you are done chopping toss all of the veggies together.Chicken Zucchini Casserole Step 1
  3. In a large casserole dish, lay the chicken in a flat single layer and season it with the salt, pepper and garlic powder. Make sure the casserole dish is big enough so the chicken can lay flat. They will cook more quickly and evenly the more spread out they are.
  4. Next layer the veggies on.  Try to spread them as evenly as possible over the chicken.  Then dollop the pesto over the veggies so that it can cook through all of the layers, and last top with the cheeses.
  5. Bake on the middle rack for 35-45 minutes or until chicken is cooked through, 165˚F internal temp. You shouldn’t have to cover the chicken, but every oven cooks differently based on size, heat type, altitude, climate etc, so start the dish uncovered and then if you notice the cheese getting a little more brown than you like, you can loosely cover it with foil.
  6. Baked Chicken and Zucchini - One dish easy dinner recipe
  7. Serve with any of the suggestions above and ENJOY!

Tips and tricks for making the best chicken zucchini casserole

Making the best chicken zucchini casserole is easy and delicious! With just a few simple steps, you can create a dish that is perfect for any occasion. By following these tips and tricks, you can make sure that your casserole is every bit as good as the ones made by those who have gone before you.

This recipe adapted from

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