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Zucchini and Yellow Squash Au Gratin Recipe

Zucchini and Yellow Squash Au Gratin Recipe


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4.7 from 25 reviews

  • Total Time: 50 minutes
  • Yield: 4 1x

Description

Creamy zucchini and yellow squash au gratin combines garden-fresh vegetables with rich cheese. Layered slices bake into a golden, comforting side dish perfect for you to savor alongside summer meals.


Ingredients

Scale

Main Vegetables:

  • 2 medium zucchinis, sliced into rounds
  • 2 medium yellow squash, sliced into rounds

Dairy and Cheese:

  • 2 tablespoons (30 ml) butter
  • 1 cup (240 ml) milk
  • 1 cup shredded cheddar cheese
  • 1/4 cup (25 g) grated Parmesan cheese

Seasonings and Toppings:

  • 2 tablespoons (15 g) all-purpose flour
  • Salt to taste
  • Pepper to taste
  • 1/4 cup (30 g) breadcrumbs (optional)
  • Fresh parsley, chopped, for garnish

Instructions

  1. Preheat the oven to 375°F (190°C) and lightly coat a baking dish with cooking spray or butter to prevent sticking.
  2. Create a roux by melting butter in a large skillet over medium heat, then whisk in flour and cook for 1-2 minutes until the mixture turns golden and fragrant.
  3. Gradually stream in milk while continuously whisking to develop a smooth, creamy base without lumps, cooking until the sauce thickens and coats the back of a spoon.
  4. Incorporate cheddar and Parmesan cheeses into the sauce, stirring until completely melted and creating a rich, velvety texture. Season with salt and pepper to enhance the flavor profile.
  5. Gently fold sliced zucchini and yellow squash into the cheese sauce, ensuring each vegetable slice is evenly coated and distributed throughout the mixture.
  6. Transfer the vegetable and cheese mixture to the prepared baking dish, spreading it out in an even layer to promote uniform cooking.
  7. Sprinkle breadcrumbs across the top of the dish for an added crispy texture and golden-brown finish.
  8. Bake in the preheated oven for 25-30 minutes, or until vegetables are tender and the top is bubbling with a beautiful golden-brown crust.
  9. Remove from oven and let rest for 5 minutes, then garnish with freshly chopped parsley to add a bright, fresh element before serving.

Notes

  • Select zucchini and yellow squash that are firm, bright, and free from blemishes for the best texture and flavor in the dish.
  • Use a sharp mandoline or knife to slice vegetables uniformly, ensuring even cooking and an attractive presentation.
  • Swap out regular milk with plant-based alternatives like almond or oat milk to create a dairy-free version of this creamy gratin.
  • Pat zucchini and squash slices dry with paper towels before mixing into the sauce to prevent excess moisture and maintain a thick, creamy consistency.
  • Prep Time: 20 minutes
  • Cook Time: 30 minutes
  • Category: Dinner, Appetizer
  • Method: Baking
  • Cuisine: French

Nutrition

  • Serving Size: 4
  • Calories: 210
  • Sugar: 3g
  • Sodium: 350mg
  • Fat: 12g
  • Saturated Fat: 7g
  • Unsaturated Fat: 4g
  • Trans Fat: 0g
  • Carbohydrates: 19g
  • Fiber: 2g
  • Protein: 8g
  • Cholesterol: 35mg