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Baked Zucchini and Squash

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A delicious Baked Zucchini and Squash recipe that you can enjoy as a side dish to many meals, Made with a Parmesan cheese topping in your oven, it is ready in about 20 minutes.

This Oven roasted zucchini and squash recipe is a great way to enjoy summer squash and farmers’ market produce. An extra bonus if you have both types of yellow squash in your vegetable garden! This is an easy way to enjoy it.

Baked Zucchini and Squash

Why This Recipe?

This is one of my favorite baked zucchini recipes. I love that it uses both zucchini and yellow squash and it is honestly super easy to make. 

This easy side dish recipe is also very economical. Most summer squash is on sale at the markets since it is abundant particularly in the summer. You can make the entire casserole for just a few dollars. 

Made with garlic, shallots, and cheese, this veggie side dish offers a cheesy, creamy twist on the summer vegetable dish that is full of flavor.   

Baked Zucchini and Squash Parmesan

This Squash & Zucchini Gratin is one of my favorite zucchini and yellow squash recipes, and I make it all year round. The result is a perfect side dish is likely to become a family favorite. 

Baked Zucchini and Squash 

Talk about cheesy goodness! 

How To Make Baked Zucchini and Squash Parmesan

Ingredients List for Squash and Zucchini with Parmesan


Yellow Squash –  It complements the zucchini nicely. Pick a squash that is firm and glossy. 


Whipping Cream 

Panko – I like to use the kind with Italian seasoning for extra flavor, but you can use plain too. 

Parmesan Cheese – fresh Parmesan cheese adds a wonderful flavor.

Zucchini and Squash Ingredients


How to Make Baked Zucchini and Squash

Step-by-Step Instructions

  1. Preheat the oven to 450° F. Wash the squash and. zucchini. Cut 1/4″ the squash and zucchini slices into fourths. dice onions.
  2. In a large skillet, cook squash, zucchini, shallots, and salt & pepper in the butter over medium-high heat until tender. Add in garlic and cook for 1 minute.
  3. Stir in the cream and cook until thickened. Remove from heat and stir in ½ cup of panko crumbs and 1/4 of the Parmesan cheese. Spoon into 13″ x 9 “baking dish prepared with nonstick spray.
  4. Sprinkle casserole with remaining panko and parmesan over the top. Bake until  golden brown and bubbly – about 10 minutes. 


How To Make Baked Zucchini and Squash Parmesan

The result is a perfect side dish!

Baked squash and zucchini casserole4.

Baked Zucchini and Squash Recipe Feat
Print Pin
5 from 1 vote

Baked Zucchini and Squash

A delicious zucchini and yellow squash side dish casserole
Course Vegetables
Cuisine American
Keyword barbecue side, gratin, parmesan, side dish, vegetable side dish, yellow squash, zucchini
Prep Time 10 minutes
Cook Time 10 minutes
Servings 10
Calories 165kcal
Cost $3


  • Cutting knife
  • Skillet
  • cutting board
  • casserole dish


  • 2 zucchini
  • 2 squash
  • 2 tablespoons butter
  • 2 shallots minced
  • 1 tablespoon garlic minced
  • ½ cup heavy whipping cream
  • 1 cup panko crumbs divided in half
  • ½ cup parmesan cheese divided in half
  • Salt & pepper to taste


  • Preheat oven to 450 degrees F.
  • Wash zucchini and squash and cut into 1/4" slices and then into fourths to make small chunks,
  • In a large skillet, cook squash, zucchini, shallots, and salt & pepper in the butter until tender - about 2 minutes.
  • Add in garlic and cook 1 minute
  • Stir in the cream and cook until thickened.
  • Remove from heat and stir in ½ the panko crumbs and parmesan cheese
  • Spoon into 13x9 baking dish prepared with nonstick spray
  • Sprinkle remaining panko and parmesan over the top.
  • Bake until topping is golden brown and bubbly - about 10 minutes.
  • Serve & enjoy!


The nutritional information provided is approximate and is calculated using online tools. Information may vary depending on ingredients used.


Serving: 1cup | Calories: 165kcal | Carbohydrates: 25g | Protein: 5g | Fat: 6g | Saturated Fat: 4g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 2g | Cholesterol: 20mg | Sodium: 142mg | Potassium: 680mg | Fiber: 4g | Sugar: 5g | Vitamin A: 16243IU | Vitamin C: 39mg | Calcium: 163mg | Iron: 2mg

Expert Tips & Shortcuts to make this perfect

  • Save a few minutes of prep work time by preparing the vegetables earlier in the day. 
  • If you don’t have Panko on hand, you can use seasoned bread crumbs.
  • Don’t have Parmesan cheese? You can make this with Cheddar.
  • There are a couple of different ways to make this a main dish by adding rotisserie chicken, just be sure to bake until the internal temperature of the chicken reaches 165°F.  Another variation is to add 1 cup of cooked pasta to the casserole before putting it in the oven. 


What Temperature Should I bake zucchini and squash?

We recommend baking this squash casserole at 450 degrees F.

Can You Freeze the Casserole?

You can freeze the casserole in an airtight container after it has cooled completely. The best way to enjoy the casserole is to eat it the day it is prepared. 

Related recipes

Zucchini and Tomatoes – a lovely sautéed veggies recipe that is the perfect summer side dish. 
Zucchini Fries – An easy way to enjoy sliced zucchini sticks made in the air fryer. 

Zucchini and Pasta Casserole – A great recipe idea that combines zuchhini, pasta and ground beef.

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Baked Zucchini and Squash Casserole


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Recipe Rating

Baked Zucchini Casserole - Organized Island

Tuesday 14th of September 2021

[…] Zucchini and Squash Casserole – A delicious and colorful side dish.  […]

Air Fryer Zucchini Fries - Organized Island

Monday 23rd of August 2021

[…] Baked Zucchini and Squash – the perfect side dish that comes together quickly. […]


Monday 16th of August 2021

This time of year is like that perfect collision of zucchini and squash from the garden. Add some cheesiness and I'm in flavor country!


Monday 16th of August 2021

Agreed - Vegetables and cheese are a perfect combination!