Yellow Squash and Zucchini Casserole

A delicious and comforting side dish, Yellow Squash and Zucchini Casserole combines tender squash, creamy cheese, and a buttery crumb topping. Perfect for family dinners, potlucks, or holiday spreads, this baked casserole highlights the natural sweetness and texture of summer squash in the most satisfying way.

Why You’ll Love This Recipe

This casserole is a crowd-pleaser thanks to its balance of creamy and crispy textures, as well as its mild yet savory flavor. It’s simple to make, great for using up garden vegetables, and pairs well with a variety of main dishes. Even picky eaters are likely to enjoy the cheesy, buttery goodness layered throughout.

ingredients

(Tip: You’ll find the full list of ingredients and measurements in the recipe card below.)

• Yellow squash
• Zucchini
• Onion
• Garlic
• Cheddar cheese
• Parmesan cheese
• Sour cream
• Eggs
• Breadcrumbs or crushed crackers
• Butter
• Olive oil
• Salt
• Black pepper

directions

1. Preheat oven to 350°F (175°C).
2. Slice yellow squash and zucchini into thin rounds. Dice onion and mince garlic.
3. In a large skillet over medium heat, add olive oil and sauté onion and garlic until fragrant.
4. Add squash and zucchini to the skillet. Cook until just tender, about 5-7 minutes. Drain excess moisture.
5. In a large bowl, mix sour cream, eggs, cheddar cheese, half of the Parmesan, salt, and pepper.
6. Fold in the cooked vegetables until well combined.
7. Transfer the mixture to a greased casserole dish.
8. In a small bowl, mix breadcrumbs or crushed crackers with melted butter and remaining Parmesan cheese.
9. Sprinkle the topping evenly over the casserole.
10. Bake for 25-30 minutes or until the top is golden brown and the casserole is bubbling.
11. Let cool slightly before serving.

Servings and timing

This recipe yields approximately 6 servings. Prep time is around 20 minutes, and cook time is 30 minutes, totaling 50 minutes.

Variations

• Add chopped cooked bacon or ham for a meaty version.
• Use different cheeses such as mozzarella or pepper jack for a twist in flavor.
• Substitute Greek yogurt for sour cream for a lighter option.
• Add fresh herbs like thyme, basil, or parsley for extra freshness.
• Make it spicy with a dash of red pepper flakes or diced jalapeños.

storage/reheating

Store leftovers in an airtight container in the refrigerator for up to 3 days. Reheat in the oven at 350°F until warmed through, or microwave individual portions for about 1-2 minutes. To maintain the crispy topping, reheating in the oven is recommended.

FAQs

How do I keep the casserole from becoming watery?

Make sure to sauté and drain the squash thoroughly to remove excess moisture before baking.

Can I freeze Yellow Squash and Zucchini Casserole?

Yes, you can freeze it before baking. Assemble the casserole, wrap tightly, and freeze. Bake directly from frozen, adding extra time.

What can I use instead of sour cream?

Greek yogurt or cream cheese can be good substitutes for sour cream.

Can I make this recipe ahead of time?

Yes, assemble the casserole up to one day in advance and refrigerate until ready to bake.

Is this recipe gluten-free?

It can be made gluten-free by using gluten-free breadcrumbs or crackers.

Can I use only one type of squash?

Yes, using just zucchini or just yellow squash works fine.

What dishes pair well with this casserole?

It pairs well with roasted meats, grilled chicken, or even as a brunch item with eggs.

Can I add protein to make it a main dish?

Yes, adding cooked chicken, turkey, or ground meat can make it a hearty main course.

What kind of cheese melts best in this dish?

Cheddar and Parmesan provide great flavor and melt well, but mozzarella also works.

Can I use frozen squash?

Fresh squash is recommended for best texture, but frozen can be used if well-drained.

Conclusion

Yellow Squash and Zucchini Casserole is a delicious and versatile dish that brings out the best in summer vegetables. Whether you’re looking for a comforting side or a light vegetarian main, this casserole is sure to impress with its creamy texture, cheesy layers, and golden, crunchy topping. Give it a try and make it a staple in your seasonal recipe collection.

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