Zucchini and Yellow Squash Au Gratin: Easy Baked Delight

Introduction to Zucchini and Yellow Squash Au Gratin

As a passionate home cook, I know how tough it can be to sneak veggies into our families’ meals without the usual grumbling. That’s why I absolutely adore this creamy, cheesy Zucchini and Yellow Squash Au Gratin. It’s a delightful way to enrich our diets with garden-fresh zucchinis and yellow squash. Whether you’re in need of a quick side for a busy evening or a special dish for a gathering, this recipe is the ultimate comfort food. Each bite brings warmth and satisfaction, proving that healthy can still be oh-so-delicious!

Why You’ll Love This Zucchini and Yellow Squash Au Gratin

This Zucchini and Yellow Squash Au Gratin is a dream come true for busy moms and professionals alike. Its ease of preparation allows you to whip it up in no time, and the quick bake time means dinner is on the table in a flash. With a creamy cheese sauce that hugs the veggies and a crunchy topping that adds texture, it’s a satisfying dish that keeps cravings at bay while offering nutritious goodness.

Ingredients for Zucchini and Yellow Squash Au Gratin

To create this delightful Zucchini and Yellow Squash Au Gratin, you’ll need some fresh zucchinis and yellow squash, both offering vibrant colors and incredible flavor. You’ll also want butter for that rich base and garlic to add depth. All-purpose flour is essential for thickening your cheese sauce, while milk and heavy cream bring creamy richness to the dish. Don’t forget shredded Gruyère or sharp cheddar cheese for that gooey goodness—substituting with your favorite cheese is perfectly fine!

Parmesan adds a nice salty note, while dried herbs like thyme or Italian seasoning enhance the flavors. For a delightful crunch, panko breadcrumbs are your best friend. Then, drizzle some olive oil or melted butter over the top for extra crispiness. You can easily switch up the cheese or even add veggies like spinach for a twist. For the exact quantities, make sure to check at the bottom of the article!

  • 2 medium zucchinis, thinly sliced
  • 2 medium yellow squash, thinly sliced
  • 2 tablespoons butter
  • 2 cloves garlic, minced
  • 1 tablespoon all-purpose flour
  • ¾ cup milk
  • ½ cup heavy cream
  • 1 cup shredded Gruyère or sharp cheddar cheese
  • ½ cup grated parmesan cheese (divided)
  • ½ teaspoon salt
  • ¼ teaspoon black pepper
  • ½ teaspoon dried thyme or Italian seasoning
  • ½ cup panko breadcrumbs
  • 1 tablespoon olive oil or melted butter (for topping)
  • Optional: fresh herbs (parsley or chives) for garnish

How to Make Zucchini and Yellow Squash Au Gratin

Preheat the Oven and Prepare the Vegetables

To start, preheat your oven to 375°F (190°C). While it’s heating up, grab a cutting board and a sharp knife. Slice your zucchinis and yellow squash into even ⅛ to ¼-inch rounds. A tip? The more uniform your slices, the more evenly they cook. Once sliced, grab some paper towels and pat those rounds dry. This step is crucial! Removing excess moisture ensures your Zucchini and Yellow Squash Au Gratin won’t end up watery, keeping every bite deliciously creamy instead.

Make the Creamy Cheese Sauce

Now that’s the prep done, it’s time for the star of the show—the creamy cheese sauce! Grab a medium saucepan and set it on medium heat. Melt 2 tablespoons of butter until foamy. Add the minced garlic, letting it sauté for about a minute until fragrant. Just imagine that buttery goodness wafting through your kitchen!

Next, whisk in the flour and cook for an additional minute to form a roux. This step makes all the difference in getting that perfect, thick sauce. Slowly pour in ¾ cup of milk and ½ cup of heavy cream while whisking continuously. In just 3-4 minutes, you’ll see it thicken beautifully. It’s like magic!

Now stir in ½ teaspoon of salt, ¼ teaspoon of black pepper, and ½ teaspoon of dried thyme or Italian seasoning. Finally, toss in ½ cup of the shredded cheese until everything is bubbly and melted. This creamy sauce is a hug for the veggies, and you can’t go wrong with a little extra taste test if you like!

Layer the Gratin

Next, grab a greased 9×9-inch baking dish. Begin layering half of those beautiful sliced zucchinis and yellow squash in an even layer across the bottom. Pour half of your creamy sauce over the top, making sure it covers everything. Repeat with the remaining squash and finish off with the rest of the luscious sauce. Simple, right?

But wait! Don’t forget to sprinkle the remaining ½ cup of shredded cheese and ¼ cup of grated parmesan cheese over the top. This is what makes your zucchini and yellow squash au gratin golden and irresistible!

Add Toppings and Bake

We’re almost done! In a small bowl, mix ½ cup of panko breadcrumbs with the remaining ¼ cup of parmesan. Drizzle in a tablespoon of olive oil or melted butter to bring it all together. This topping is your crunchy crown!

Now sprinkle that crunchy mixture evenly over the top of your gratin. Cover the dish loosely with foil, and it’s time to bake. Slide it into the preheated oven for 25 minutes. After that, remove the foil and continue to bake for another 15-20 minutes. You want it bubbly and golden brown on top—trust your instincts!

Once done, let your gratin rest for 5-10 minutes before serving. This little waiting game allows it to set up beautifully. Garnish with some fresh herbs like parsley or chives for an extra sprinkle of color. Just like that, you have a sensational side dish that’ll have everyone coming back for seconds!

Tips for Success

  • Always pat the zucchini and yellow squash dry to prevent a watery gratin.
  • Feel free to experiment with different cheese types like mozzarella or Fontina.
  • For extra flavor, consider adding chopped onions or bell peppers in the layering.
  • Using gluten-free breadcrumbs can accommodate those with dietary restrictions.
  • Make it ahead! Prep the dish and store it in the fridge until ready to bake.

Equipment Needed

For this Zucchini and Yellow Squash Au Gratin, you’ll need a sharp knife and cutting board for slicing. A medium saucepan is essential for your creamy cheese sauce. Don’t forget a whisk, measuring cups, and a greased 9×9-inch baking dish. If you lack a baking dish, any oven-safe dish will do!

Variations

  • Add depth with sautéed onions or shallots for a sweet contrast.
  • Substitute zucchini and yellow squash with other seasonal veggies like eggplant, bell peppers, or mushrooms.
  • For a burst of color and flavor, throw in some cherry tomatoes or spinach.
  • Use gluten-free panko breadcrumbs for a gluten-free option without losing crunch.
  • Experiment with dairy-free alternatives like cashew cream and vegan cheese for a lighter dish.
  • Try fresh herbs like basil or dill to elevate the dish’s aroma.
  • Add a hint of heat by sprinkling in red pepper flakes.
  • Incorporate cooked protein like shredded chicken or sausage for a heartier main dish.

Serving Suggestions

This Zucchini and Yellow Squash Au Gratin pairs beautifully with roasted chicken or grilled fish. For a wholesome dinner, serve it alongside a fresh mixed greens salad dressed with a light vinaigrette. To elevate your presentation, sprinkle fresh herbs on top and serve in rustic dishware for that cozy touch!

FAQs about Zucchini and Yellow Squash Au Gratin

Can I make this Zucchini and Yellow Squash Au Gratin ahead of time? Absolutely! You can prepare the dish up to the point of baking and store it in the fridge. Just cover it tightly with foil or plastic wrap. When you’re ready to bake, give it a bit of extra time in the oven since it will be chilled. It’s a lifesaver for busy evenings!

How should I store leftover Zucchini and Yellow Squash Au Gratin? Leftovers are a delightful treat! Allow the gratin to cool completely, then transfer it to an airtight container. You can store it in the fridge for up to three days. Trust me, it’s just as tasty the next day!

Are there gluten-free options for this recipe? Yes! Simply replace the panko breadcrumbs with gluten-free alternatives. Many brands offer delicious gluten-free options that will give you that satisfying crunch without the gluten.

What’s the best way to reheat leftovers? For the best results, reheat your Zucchini and Yellow Squash Au Gratin in the oven. Preheat it to 350°F (175°C) and bake covered for about 15-20 minutes, or until heated through. This keeps the topping crispy and avoids sogginess!

Can I freeze Zucchini and Yellow Squash Au Gratin? Yes, you can freeze it! Before baking, assemble the dish, wrap it tightly, and freeze. When you’re ready to enjoy it, just thaw it in the refrigerator overnight and then bake according to the original instructions. It’s like having a homemade meal ready to go!

Final Thoughts

There’s something truly joyful about serving up a dish like Zucchini and Yellow Squash Au Gratin at the family table. It beautifully combines comfort with health, offering a delightful way to bring veggies into our meals without a fuss. Each crispy, cheesy bite echoes warmth, reminding us that nutritious doesn’t have to be boring. I hope you can share this culinary adventure with your loved ones and watch their smiles as they savor each forkful. I’d love to hear your experiences, too! What twist have you put on this fantastic dish? Let’s inspire each other in our kitchens!

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Zucchini and Yellow Squash Au Gratin


  • Author: Emily
  • Total Time: 1 hour
  • Yield: 4 servings 1x
  • Diet: Vegetarian

Description

A delicious and easy baked dish featuring layers of zucchini and yellow squash in a creamy cheese sauce, topped with a crunchy panko breadcrumb crust.


Ingredients

Scale
  • 2 medium zucchinis, thinly sliced
  • 2 medium yellow squash, thinly sliced
  • 2 tablespoons butter
  • 2 cloves garlic, minced
  • 1 tablespoon all-purpose flour
  • ¾ cup milk
  • ½ cup heavy cream
  • 1 cup shredded Gruyère or sharp cheddar cheese
  • ½ cup grated parmesan cheese (divided)
  • ½ teaspoon salt
  • ¼ teaspoon black pepper
  • ½ teaspoon dried thyme or Italian seasoning
  • ½ cup panko breadcrumbs
  • 1 tablespoon olive oil or melted butter (for topping)
  • Optional: fresh herbs (parsley or chives) for garnish

Instructions

  1. Preheat oven to 375°F (190°C). Thinly slice the zucchini and yellow squash into even ⅛–¼-inch rounds. Pat them dry with paper towels to remove excess moisture.
  2. In a medium saucepan, melt butter over medium heat. Add garlic and sauté for 1 minute until fragrant. Whisk in the flour and cook for 1 minute to form a roux.
  3. Slowly pour in the milk and cream, whisking continuously until the sauce begins to thicken (about 3–4 minutes). Stir in salt, pepper, thyme, and ½ cup of the shredded cheese. Stir until melted and smooth. Remove from heat.
  4. In a greased 9×9-inch or similar baking dish, layer half the sliced squash in an even layer. Pour half of the cream sauce over it. Repeat with the remaining squash and top with the rest of the sauce.
  5. Sprinkle with remaining ½ cup shredded cheese and ¼ cup parmesan.
  6. In a small bowl, mix panko breadcrumbs, the remaining ¼ cup parmesan, and olive oil or melted butter. Sprinkle over the top of the gratin evenly.
  7. Cover loosely with foil and bake for 25 minutes. Remove foil and bake another 15–20 minutes, until bubbly and golden brown on top.
  8. Let the gratin rest for 5–10 minutes before serving to allow it to set. Garnish with fresh herbs, if desired.

Notes

  • Ensure zucchini and squash are patted dry to avoid a watery gratin.
  • Feel free to substitute different types of cheese based on preference.
  • This dish can be prepared ahead of time and baked just before serving.
  • Prep Time: 20 minutes
  • Cook Time: 40 minutes
  • Category: Side Dish
  • Method: Baking
  • Cuisine: American

Nutrition

  • Serving Size: 1 cup
  • Calories: 320
  • Sugar: 3g
  • Sodium: 400mg
  • Fat: 22g
  • Saturated Fat: 12g
  • Unsaturated Fat: 7g
  • Trans Fat: 0g
  • Carbohydrates: 22g
  • Fiber: 2g
  • Protein: 10g
  • Cholesterol: 65mg

Keywords: Zucchini, Yellow Squash, Au Gratin, Baked Dish, Vegetarian

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