Description
Tender zucchini and yellow squash slices baked in a rich, cheesy cream sauce, topped with a golden, crispy finish. This easy and comforting Zucchini and Yellow Squash Au Gratin is perfect as a side for any meal!
Ingredients
Scale
- 2 medium zucchinis, thinly sliced
- 2 medium yellow squashes, thinly sliced
- 2 tablespoons butter
- 2 cloves garlic, minced
- 1 cup heavy cream
- 1 cup shredded Gruyère cheese (or Swiss cheese)
- 1/2 cup grated Parmesan cheese
- 1/2 cup shredded mozzarella cheese
- 1/2 teaspoon dried thyme
- 1/2 teaspoon onion powder
- Salt and black pepper, to taste
- 1/2 cup breadcrumbs (panko or regular)
- 1 tablespoon olive oil
- Fresh parsley, chopped (for garnish, optional)
Instructions
- Preheat your oven to 375°F (190°C). Lightly grease a 9×13-inch baking dish.
- Thinly slice the zucchini and yellow squash into even rounds (about 1/8-inch thick).
- In a large skillet, melt butter over medium heat. Add minced garlic and cook for 1-2 minutes until fragrant. Pour in heavy cream, then stir in Gruyère, Parmesan, thyme, onion powder, salt, and pepper. Cook until the cheese is melted and the sauce is smooth.
- Arrange the sliced squash evenly in the prepared baking dish. Pour the creamy cheese sauce over the squash, coating evenly.
- Sprinkle mozzarella cheese evenly over the top. In a small bowl, mix breadcrumbs with olive oil and sprinkle over the dish.
- Bake for 25–30 minutes, or until the top is golden brown and the squash is tender.
- Let cool for a few minutes. Garnish with chopped fresh parsley if desired and serve warm.
Notes
- Try salting the sliced squash lightly and letting it sit for 10 minutes, then pat dry before assembling to reduce extra moisture.
- Gruyère cheese adds a wonderful nutty flavor, but you can substitute with sharp white cheddar or Swiss if needed.
- For a richer flavor, add a pinch of nutmeg to the sauce.
Nutrition
- Serving Size: 1/6 of recipe
- Calories: 280 kcal
- Sugar: 4g
- Sodium: 320mg
- Fat: 22g
- Saturated Fat: 13g
- Unsaturated Fat: 8g
- Trans Fat: 0g
- Carbohydrates: 12g
- Fiber: 2g
- Protein: 10g
- Cholesterol: 60mg