Easy Cheesy Yellow Squash Casserole Recipe

Category: Salads & Side dishes

This Easy Cheesy Yellow Squash Casserole is a warm, comforting dish, packed with tender squash and cheesy goodness. It’s simple to whip up and perfect for family dinners!

The cheesy topping is what really makes this casserole shine. I mean, who could resist that golden layer of melted cheese? It’s the ultimate way to enjoy those healthy veggies! 🧀

I love making this casserole for a quick side dish. You just mix everything, bake, and enjoy a tasty meal that makes everyone happy. It’s a win-win for sure!

Key Ingredients & Substitutions

Yellow Squash: This is the star of the dish! I recommend using fresh yellow squash for the best flavor. If you can’t find yellow squash, zucchini is a great substitute. Just remember to slice them thinly.

Cheeses: Sharp cheddar brings a lot of flavor, while mozzarella adds creaminess. If you’re looking for a twist, you can substitute Gouda for cheddar or use a plant-based cheese if you’re making it dairy-free.

Sour Cream & Mayonnaise: Both add creaminess to the dish. If you want a lighter option, replace them with plain Greek yogurt. It’s tangy and adds protein too.

Crumble Topping: I love using crushed crackers for a buttery crunch. If you’re gluten-free, you can swap it for gluten-free breadcrumbs or even crushed nuts for a different texture.

How Do You Cook Yellow Squash Perfectly for Casserole?

Cooking the squash properly ensures your casserole isn’t watery. Here’s how to do it:

  • Slice the squash evenly so they cook at the same rate.
  • Start by sautéing the onions and garlic first for flavor. This is essential for depth!
  • Add the sliced squash next, and don’t rush this step; cook until they soften a bit, about 5-7 minutes.
  • This step helps extract excess moisture. Let them rest briefly before adding them to your mixture.

Follow these tips, and you’ll have a delicious, cheesy casserole that everyone will love! Enjoy!

Easy Cheesy Yellow Squash Casserole Recipe

Easy Cheesy Yellow Squash Casserole

Ingredients You’ll Need:

For the Casserole:

  • 4 cups yellow squash, sliced (about 4 medium squash)
  • 1 medium onion, finely chopped
  • 2 cloves garlic, minced
  • 1 cup shredded sharp cheddar cheese
  • 1/2 cup shredded mozzarella cheese
  • 1/4 cup grated Parmesan cheese
  • 1 cup sour cream
  • 1/2 cup mayonnaise
  • 2 large eggs
  • 1/2 tsp salt
  • 1/4 tsp black pepper
  • 1/2 tsp dried thyme (optional)

For the Topping:

  • 1 cup crushed buttery crackers or breadcrumbs
  • 2 tbsp butter, melted

How Much Time Will You Need?

This delicious casserole requires about 15 minutes of prep time and around 30-35 minutes to bake. In total, you’ll spend about 50-55 minutes for a comforting dish that’s perfect for any meal!

Step-by-Step Instructions:

1. Preheat and Prepare:

Start by preheating your oven to 350°F (175°C). Take a 9×13 inch casserole dish and grease it lightly with butter or cooking spray to prevent sticking.

2. Sauté the Veggies:

In a large skillet over medium heat, add a little oil or butter and sauté the chopped onion and minced garlic until they’re softened and translucent—this should take about 3-4 minutes.

3. Cook the Squash:

Now, add the sliced yellow squash to the skillet. Sprinkle with salt, pepper, and thyme if you’re using it. Cook everything until the squash starts to soften, roughly 5-7 minutes. Remove the skillet from heat and let it cool slightly.

4. Make the Creamy Mixture:

In a large mixing bowl, combine the sour cream, mayonnaise, and eggs. Mix until everything is well blended and smooth.

5. Combine Ingredients:

Next, fold in the cooled squash and onion mixture along with the cheddar cheese and half of the mozzarella cheese. Make sure everything is evenly combined.

6. Assemble the Casserole:

Pour the squash mixture into the greased casserole dish and spread it out evenly.

7. Prepare the Topping:

In a small bowl, combine the crushed buttery crackers or breadcrumbs with the melted butter and grated Parmesan cheese. Mix well.

8. Add Topping and Cheese:

Sprinkle the breadcrumb mixture evenly over the top of the casserole. Finish by adding the remaining mozzarella cheese for a deliciously cheesy layer.

9. Bake to Perfection:

Place your casserole in the preheated oven and bake for 30-35 minutes, or until it’s bubbly and golden brown on top. The aroma will fill your kitchen!

10. Serve and Enjoy:

Once baked, let the casserole cool for about 5 minutes before serving. This will help it set a bit. Serve it warm, and revel in the creamy, cheesy goodness of your yellow squash casserole!

Easy Cheesy Yellow Squash Casserole Recipe

FAQ for Easy Cheesy Yellow Squash Casserole

Can I Use Frozen Squash for This Recipe?

It’s best to use fresh squash for optimal flavor and texture, but if you decide to use frozen squash, make sure to thaw and drain it thoroughly before cooking. Squeeze out any excess moisture to prevent a watery casserole!

How Can I Make This Recipe Healthier?

To lighten up the casserole, try replacing the sour cream and mayonnaise with Greek yogurt. You can also reduce the amount of cheese or use low-fat versions to cut down on calories without compromising too much on taste.

Can I Prepare This Casserole Ahead of Time?

Absolutely! You can assemble the casserole up to a day in advance. Just cover it tightly and refrigerate. When you’re ready to bake, let it sit at room temperature for about 30 minutes before placing it in the oven to bake as directed.

What Are the Best Storage Tips for Leftover Casserole?

Store any leftovers in an airtight container in the refrigerator for up to 3 days. To reheat, simply warm it in the oven or microwave until heated through. You can cover it with foil while reheating to keep it moist!

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