Zucchini and Yellow Squash Au Gratin

This Zucchini and Yellow Squash Au Gratin is a creamy, cheesy, and comforting side dish that’s perfect for any occasion. With layers of tender squash, a rich cream sauce, and a golden cheesy topping, it’s an elegant yet simple way to enjoy seasonal vegetables. Whether you’re serving it at a holiday dinner or alongside a weeknight meal, this dish is sure to impress!

Why You’ll Love This Recipe:

• Creamy & Cheesy: A luscious cream sauce combined with melted Parmesan and Gruyère creates a decadent base.
• Versatile: Pairs beautifully with roasted meats, grilled chicken, or even as a standalone vegetarian dish.
• Easy to Make: Simple ingredients and straightforward steps make this recipe approachable for cooks of all levels.

 Ingredients:

• 2 medium zucchinis , thinly sliced
• 2 medium yellow squashes , thinly sliced
• 1 tbsp olive oil
• ½ cup diced onion
• 2 cloves garlic , minced
• 1 cup heavy cream
• ½ cup grated Parmesan cheese , divided
• 1 cup shredded Gruyère or Swiss cheese , divided
• ½ tsp dried thyme
• Salt and pepper , to taste
• ¼ cup bread crumbs (optional, for a crispy topping)
• Fresh parsley , chopped (for garnish)

 Instructions:

Step 1: Preheat Oven and Prep Ingredients

1. Preheat your oven to 400°F (200°C) .
2. Grease an 8×8-inch baking dish or similar-sized casserole dish with butter or nonstick spray.

Step 2: Cook Onion and Garlic

1. In a skillet over medium heat, add the olive oil . Sauté the diced onion until it becomes translucent, about 3–4 minutes .
2. Add the minced garlic and cook for an additional 1–2 minutes , stirring frequently to avoid burning, until fragrant.

Step 3: Prepare Cream Mixture

1. Pour the heavy cream into the skillet with the onion and garlic. Stir in ¼ cup Parmesan cheese , ½ cup Gruyère cheese , thyme , salt , and pepper .
2. Cook over low heat, stirring occasionally, until the cheeses are melted and the sauce is smooth and creamy. Remove from heat.

Step 4: Layer the Squash

1. Arrange half of the zucchini and yellow squash slices in the bottom of the prepared baking dish, slightly overlapping them for even coverage.
2. Pour half of the cream mixture over the squash, spreading it evenly with a spoon or spatula.
3. Repeat with the remaining squash slices and top with the remaining cream mixture.

Step 5: Add Cheese and Topping

1. Sprinkle the remaining ¼ cup Parmesan cheese and ½ cup Gruyère cheese evenly over the top of the squash layers.
2. For a crispy topping, sprinkle bread crumbs over the cheese layer.

Step 6: Bake

1. Cover the baking dish with foil and bake for 20 minutes .
2. Remove the foil and bake for an additional 15–20 minutes , or until the top is golden brown, bubbly, and the squash is tender when pierced with a fork.

Step 7: Garnish and Serve

1. Remove the dish from the oven and let it cool for a few minutes.
2. Garnish with chopped fresh parsley for a pop of color and freshness.
3. Serve warm and enjoy this creamy, cheesy masterpiece!

Tips for Success:

• Swap Cheeses: Use mozzarella, cheddar, or fontina if you don’t have Gruyère or Swiss.
• Add Herbs: Fresh thyme or rosemary can replace dried thyme for a brighter flavor.
• Make It Gluten-Free: Skip the bread crumbs or use gluten-free alternatives for a crispy topping.
• Storage: Store leftovers in an airtight container in the refrigerator for up to 3 days . Reheat in the oven or microwave before serving.
• Freeze Option: Freeze unbaked casserole, tightly wrapped, for up to 3 months . Thaw overnight in the refrigerator and bake as directed, adding a few extra minutes if needed.

Nutritional Information (per serving, serves 6):

• Calories: ~250
• Protein: ~10g
• Carbohydrates: ~12g
• Fat: ~18g

Enjoy this Zucchini and Yellow Squash Au Gratin as a delicious way to elevate simple vegetables into a show-stopping dish. Its creamy texture, cheesy goodness, and golden crust make it a crowd-pleaser that’s perfect for any meal. Pair it with your favorite protein or serve it as a standout side—either way, it’s sure to be a hit!