Savory Herb Squash Casserole

🕒 Prep: 15 min
🔥 Cook: 30 min
🍽 Serves: 6
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This Savory Herb Squash Casserole is a delightful way to embrace the flavors of summer squash, paired with aromatic herbs and a crispy, cheesy topping. It's a perfect side dish that brings warmth and comfort to any meal.

Ingredients for Savory Herb Squash Casserole

Yellow squash is the star of the dish, offering a mild, slightly sweet taste that pairs beautifully with herbs. Onion and garlic add depth and aroma, while olive oil helps to sauté them to perfection. The mix of parmesan cheese and breadcrumbs provides a savory, crunchy top layer. Fresh herbs like basil, thyme, and parsley bring out vibrant flavors. The combination of sour cream and mayonnaise ensures a creamy, rich texture, and mozzarella cheese adds a melty finish. A hint of salt, black pepper, and red pepper flakes season the casserole perfectly.

Tips & Tricks

  • Slice the squash evenly to ensure uniform cooking.
  • Use fresh herbs for the best flavor, but dried can work in a pinch – just use a third of the amount.
  • Let the dish rest for a few minutes after baking to allow it to firm up.

Serving Suggestions

This casserole pairs wonderfully with grilled chicken or fish for a balanced meal. For a vegetarian delight, serve it alongside a fresh green salad or roasted vegetables. A chilled glass of white wine like Sauvignon Blanc complements the flavors beautifully.

Frequently Asked Questions

Can I use a different type of cheese?
Absolutely! Feel free to swap in Gruyere or cheddar for a different flavor profile.
How do I store leftovers?
Keep leftovers in an airtight container in the fridge for up to three days. Reheat in the oven for the best texture.
Can this be made ahead of time?
Yes, you can assemble the casserole a day in advance and bake it just before serving.

Savory Herb Squash Casserole Recipe Walkthrough

Start by preheating your oven to 350°F (175°C). This step ensures your casserole will bake evenly. In a large skillet, heat up your olive oil over medium heat. Toss in the onion and garlic, and let them sauté until they become fragrant and just start to soften, about two minutes.

Next, add the sliced squash to the skillet. Cook them until they're tender, which should take around 5-7 minutes. You'll want the squash to be soft but not mushy. Transfer this cooked mixture into a large bowl. Add in the parmesan cheese, fresh basil, thyme, parsley, salt, black pepper, red pepper flakes, sour cream, and mayonnaise. Stir everything together until it's well combined.

Prepare a 9x13 inch baking dish by greasing it lightly. Pour your squash mixture into the dish, spreading it evenly. In a small bowl, mix the breadcrumbs with mozzarella cheese. Sprinkle this mixture over the top of your casserole. Place the dish in your preheated oven and bake for 25-30 minutes. You'll know it's done when the top is golden brown and slightly crispy.

Once baked, let the casserole cool slightly before serving. This helps it set a bit more, making it easier to serve without falling apart.

Why You'll Love This Recipe

  • Combines fresh herbs for a fragrant, earthy taste.
  • Features a crunchy breadcrumb and mozzarella topping.
  • Uses simple ingredients with big flavors.
  • Easy to make and perfect for potlucks or family dinners.
  • Great way to use up a bumper crop of squash.

Ingredients

2 lbs yellow squash, sliced
1 cup chopped onion
2 cloves garlic, minced
2 tbsp olive oil
1/2 cup freshly grated parmesan cheese
1/2 cup breadcrumbs
1/4 cup chopped fresh basil
1 tbsp chopped fresh thyme
1 tbsp chopped fresh parsley
1/2 tsp salt
1/4 tsp black pepper
1/4 tsp red pepper flakes
1/2 cup sour cream
1/4 cup mayonnaise
1/4 cup shredded mozzarella cheese

Step-by-step Instructions

1. Preheat the oven to 350°F (175°C).
2. In a large skillet, heat olive oil over medium heat. Sauté onions and garlic until fragrant, about 2 minutes.
3. Add sliced squash to the skillet and cook until tender, about 5-7 minutes.
4. In a large bowl, combine cooked squash mixture, parmesan cheese, basil, thyme, parsley, salt, black pepper, red pepper flakes, sour cream, and mayonnaise.
5. Transfer the mixture to a greased 9x13 inch baking dish.
6. In a small bowl, mix breadcrumbs and mozzarella cheese, then sprinkle evenly over the squash mixture.
7. Bake in the preheated oven for 25-30 minutes, or until the top is golden brown.
8. Let cool slightly before serving.

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