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Nothing’s better (or easier) than this One Pan Corn and Zucchini Pesto Orzo Casserole with crispy, crunchy cheddar on top. Made using healthy vegetables and herbs, this bake is so darn easy, and so darn delicious. It’s made entirely in one pan and in under an hour. Grab some orzo pasta, plenty of herbs, and all the summer zucchini and corn that you can find. Toss everything together in a baking dish, then add creamy Havarti and sharp cheddar cheese. Bake until the top is crispy and crunchy. Simple, but SO GOOD.

One Pan Corn and Zucchini Pesto Orzo Casserole | halfbakedharvest.com

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With the abundance of summertime zucchini, corn, and herbs, I’m doing all I can to use everything up before the season ends. I’m overwhelmed with ideas, but that’s a good thing, and very exciting! I love this time of year so much.

Before leaving for Mexico, I was trying to use up some of the herbs we had in the greenhouse. You’re going to hear me say this again and again over the next few weeks, but the amount of basil we have is unreal. So much basil, so lots of basil recipes coming soon!

I thought I would highlight the fresh zucchini and corn with this recipe. It’s the perfect all-in-one dinner and it takes no time to prepare.

Ingredients

  • Zucchini or yellow summer squash 
  • Extra virgin olive oil 
  • Garlic, chopped 
  • Shallot 
  • Fresh thyme leaves 
  • Italian seasoning 
  • Kosher salt and black pepper 
  • Fresh corn 
  • Chili flakes 
  • Dry orzo pasta 
  • Basil pesto 
  • Havarti or mozzarella cheese 
  • Shredded sharp cheddar cheese 
  • Fresh basil 
One Pan Corn and Zucchini Pesto Orzo Casserole | halfbakedharvest.com

The background

Do you guys remember the caprese bake I made a while back? While that dish inspired this one. I LOVED that method of cooking orzo in the same pan as everything else. Not only is it super easy, but the orzo ends up tasting even more delicious because it becomes infused with the flavors of the dish.

I wanted to take that cooking method and apply it to this recipe, just switch up the flavors and summery ingredients.

One Pan Corn and Zucchini Pesto Orzo Casserole | halfbakedharvest.com

The details

The recipe starts and ends in the same baking dish.

I like to use a mix of zucchini and yellow summer squash, but you can use either/or for this dish. Give them a nice thin slice, then toss with olive oil, garlic, shallots, fresh thyme, and some Italian seasoning.

Roast the zucchini to help remove the water and get the cooking process moving along.

When the zucchini is ready, add the corn, the orzo, the basil pesto, and some chili flakes for a little heat.

Toss everything together, then pour over the water, so simple. The water cooks the pasta just as if we’d boiled it on the stove. Once the water is in, bake another 10 minutes or so. Allow the water to cook into the pasta, then stir, and sprinkle over the cheese. Now finish baking!

One Pan Corn and Zucchini Pesto Orzo Casserole | halfbakedharvest.com

Finish it up and eat

When the sauce is bubbling and the cheese has melted, pull the pan out. If there’s a lot of oil on top from the jar of pesto, just drain that off and save it for dipping with bread (YUMMM).

Top with plenty of fresh basil and that’s literally it. SO SIMPLE, SO DELICIOUS! And I love that there’s basically no prep or extra dishes.

Simple but delicious really is the key! Especially during these fun summer days.

One Pan Corn and Zucchini Pesto Orzo Casserole | halfbakedharvest.com

Looking for other easy summer bakes? Here are my favorites: 

One Pot Sun-Dried Tomato Pasta with Whipped Ricotta

Creamy Sun-Dried Tomato Chicken Pasta

4 Cheese Sun-Dried Tomato and Spinach Pasta Bake

Lastly, if you make this One Pan Corn and Zucchini Pesto Orzo Casserole, be sure to leave a comment and/or give this recipe a rating! Above all, I love to hear from you guys and always do my best to respond to each and every comment. And of course, if you do make this recipe, don’t forget to tag me on Instagram! Looking through the photos of recipes you all have made is my favorite!

Easiest One Pan Corn and Zucchini Pesto Orzo Casserole

One Pan Corn and Zucchini Pesto Orzo Casserole | halfbakedharvest.com
4.87 from 284 votes
6
calories 737kcal
Prep15 minutes
Cook30 minutes
Total45 minutes
Made using healthy vegetables and herbs, in one pan, in less than an hour. Toss everything in and done!
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Instructions 

  • 1. Preheat the oven to 400° F.
    2. In a 9×13 inch baking dish, combine the zucchini, olive oil, garlic, shallots, thyme, Italian seasoning, chili flakes, salt, and pepper. Roast 15 minutes. Pull the zucchini out of the oven. To the same pan, add the corn, orzo, and pesto. Pour over 2 1/2 cups of water and stir to combine. Return the dish to the oven and bake for 12-15 minutes, until most of the water has cooked into the pasta, but not all of it.
    3. Stir the pasta around, then sprinkle over the cheeses. Bake another 10 minutes, until the cheese has melted and the sauce is bubbling. If there's a lot of oil from the pesto on top, drain off the excess. Top with fresh basil!

Nutrition

Calories: 737kcal

Nutritional information is only an estimate. The accuracy of the nutritional information for any recipe on this site is not guaranteed.

Did you make this recipe? Please rate & comment below.

One Pan Corn and Zucchini Pesto Orzo Casserole | halfbakedharvest.com

Meet Tieghan Gerard

I'm Tieghan, the recipes you'll find here are inspired by the people and places I love most. I try to live simply, eat seasonally, and cook with whole foods. My hope is to inspire a love for amazing food, as well as the courage to try something new!

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4.87 from 284 votes (135 ratings without comment)

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571 Comments

  1. RL says:

    5 stars
    Added cherry tomatoes with the zucchini, white beans with the orzo, and spinach before the cheese to make this more of a main course – came out great! I also used frozen corn and reduced the liquid a bit to compensate for the extra water.

    1. Tieghan says:

      Hey there,
      Happy Wednesday!! Thanks a bunch for making this recipe and sharing your review, I love to hear that it was tasty!?

  2. Robin says:

    5 stars
    Did i do something wrong? I ended up needing double the water and it took 30 minutes to cook the pasta. it tastes amazing! but i feel like i missed a step?!

    1. Tieghan says:

      Hi Robin,
      Sorry to hear you had some issues. Was there anything you adjusted? What kind of pasta did you use? It’s hard for me to say without seeing you actually make the recipe:) xTieghan

  3. Rebecca says:

    5 stars
    Thank god for Tieghan or my family and I would starve ? I am not a cook by any means, but my whole family really enjoyed this! So simple which is perfect for summer. I subbed chicken stock for water. Delicious.

    1. Tieghan says:

      Hey Rebecca,
      LOL thanks so much for your kind message and making so many recipes:) Love to hear that your family enjoys them! xTieghan

  4. Jodi King says:

    5 stars
    Tieghan, this was absolutely delicious!! For others that made this, I cooked the squash for 9 min, then I added some chicken bouillon to the hot water, and some green onions. I also shucked corn and put it on the charcoal grill for 15min before cutting it off the cob. And I used shredded white cheddar cheese. Oh my, it was so good and my kids actually loved it, and they don’t like squash. 🙂 It’s a keeper!!

    1. Tieghan says:

      Hey Jodi,
      Happy Wednesday!! Thanks a bunch for making this recipe and sharing your review, I love to hear that it was tasty!?

  5. Amanda says:

    Made this for dinner last night and my husband and I both really enjoyed it. I had a 6.3oz container of fresh pesto from Whole Foods that was plenty. I also used dill havarti, gruyere, and cheddar since that’s what I had. Very good! Can’t wait for the leftovers for lunch today!

    1. Tieghan says:

      Hey Amanda,
      Happy Tuesday! I am so excited that this recipe was a hit, thanks so much for making it! xTieghan

  6. Pam says:

    5 stars
    This recipe was fantastic!! I was inspired by another review to add ground spicy sausage, and I also used beef bone broth instead of water. The results were amazing! I will definitely be making this recipe again before the summer produce is out of season. Thanks for another great recipe!

    1. Tieghan says:

      Hey Pam,
      Amazing!! Love that you added some sausage to this dish, thanks for sharing! So glad you enjoyed the recipe:) xx

  7. Luanne says:

    5 stars
    I made this for dinner tonight. It was amazing and so many flavors going on. The pesto makes it divine. Thank you for sharing!

    1. Tieghan says:

      Hey Luanne,
      Wonderful!! I love to hear that this recipe was enjoyed, thanks so much for making it! xx

  8. Brooke Kehoe says:

    5 stars
    OMG. This was summer in a dish! I used gluten free orzo & par boiled it for 5 min before adding it to the dish. Maybe a little more pesto, only because it’s my favorite thing in the world. My husband & daughter raved about this dish. Thank you!

    1. Mary says:

      This was delish!! Used chicken broth instead of water and it turned out perfectly. Thanks for a good summer recipe.

      1. Tieghan says:

        Hey Mary,
        Amazing! Such a great idea to use bone broth, I am so glad this recipe was enjoyed! xTieghan

    2. Tieghan says:

      Hey Brooke,
      Wonderful! I am so excited to hear that this recipe was a hit, thanks for trying it out! xx

  9. ALISON RAGONESE says:

    This is really good. I first thought it was going to be to much basil flavor with the pesto and the fresh basil. But it wasn’t. It was really good! I would make it again. Great vegetarian dinner or I served it with some sautéed chicken. I have really liked every recipe I’ve tried.

    1. Tieghan says:

      Hey Alison,
      Wonderful! I am so excited to hear that this recipe was a hit, thanks for trying it out! xx

  10. Anna Gilbert says:

    4 stars
    I love anything that combines pasta and veggies in one dish, and this recipe was solid! It did take a good 15 minutes longer to bake than instructed, but I didn’t put much cheese on top, so maybe it didn’t have that cheesy tent to provide insulation. I’ll make it again! (Also, you wouldn’t be wrong to sauté up some ground chicken sausage and throw that in with the orzo 😉

    1. Tieghan says:

      Hey Anna,
      Amazing!! I am thrilled to hear that this recipe was enjoyed, thanks for making it and sharing your review! xxT

  11. Rylee says:

    Hey Tieghan! Love this recipe and have already made it a couple times. If I’m cooking for someone who is gluten free would a wild rice blend work well in this dish? Thanks!

    1. Tieghan says:

      Hey Rylee,
      Amazing!! I am thrilled to hear that this recipe was enjoyed, thanks for making it and sharing your review! I think Arborio rice would work best for you! xxT

  12. Barb says:

    5 stars
    I made this yesterday with squash, onions, and herbs from my own garden. I loved it and it was so quick and easy to make. I halfed the recipe since there is only two of us and there is plenty for leftovers.

    1. Tieghan says:

      Hey Barb,
      Amazing!! I am thrilled to hear that this recipe was enjoyed, thanks for making it and sharing your review! xxT

      1. Emily says:

        Looks so good! Do you think I could add chicken? How would you suggest the best way to do that is?

        1. Tieghan says:

          Hi Emily,
          Sure, I would add cooked chicken in step 3. Please let me know if you have any other questions, I hope you love the recipe! xx

  13. Linda Kelly says:

    5 stars
    Delicious, quick and easy. We enjoyed this as leftovers and even had a portion to freeze for later.

    1. Tieghan says:

      Hey Linda,
      Happy Sunday!! Thanks so much for making this recipe, I am so glad it was a hit! xTieghan

  14. Mimi says:

    5 stars
    I made this for dinner tonight (third recipe this week)! I cooked the orzo a little longer (that always happens to me). It came out outstanding. Even my kids ate it!!!

    1. Tieghan says:

      Hi Mimi,
      Fantastic!! Thanks so much for trying the recipe out, I am so glad to hear it was enjoyed! Happy Sunday! xTieghan

  15. KMilo says:

    3 stars
    Uncomplicated recipe that was fairly quick to make. It needs a little punch so I squeezed on a little lemon and that helped a little.

    1. Tieghan says:

      Hi there,
      Thanks for making the recipe and sharing your feedback! Hope you have a great week! xTieghan