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Zucchini and Yellow Squash Au Gratin


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  • Author: harper-elise
  • Total Time: 45
  • Yield: 4 servings 1x
  • Diet: Vegetarian

Description

A creamy, cheesy dish featuring tender zucchini and yellow squash, 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

  1. Preheat your oven to 375°F (190°C). Lightly grease a 9×13-inch baking dish.
  2. Thinly slice the zucchini and yellow squash into even rounds (about 1/8-inch thick).
  3. In a large skillet, melt butter over medium heat. Add minced garlic and cook for 1-2 minutes until fragrant.
  4. 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.
  5. Arrange the sliced squash evenly in the prepared baking dish. Pour the creamy cheese sauce over the squash, coating evenly.
  6. Sprinkle mozzarella cheese evenly over the top. In a small bowl, mix breadcrumbs with olive oil and sprinkle over the dish.
  7. Bake for 25–30 minutes, or until the top is golden brown and the squash is tender.
  8. Let cool for a few minutes. Garnish with chopped fresh parsley if desired and serve warm.

Notes

Ensure the squash is sliced evenly for consistent cooking. You can mix different cheeses for varied flavors.

  • Prep Time: 15
  • Cook Time: 30
  • Category: Side Dish
  • Method: Baking
  • Cuisine: American

Nutrition

  • Serving Size: 1 serving
  • Calories: 350
  • Sugar: 5g
  • Sodium: 400mg
  • Fat: 25g
  • Saturated Fat: 15g
  • Unsaturated Fat: 8g
  • Trans Fat: 0g
  • Carbohydrates: 30g
  • Fiber: 3g
  • Protein: 10g
  • Cholesterol: 80mg