When you think ‘gratin’ you probably think potato, but the great news is that you can gratinee pretty much anything edible, and when an ingredient is baked in a creamy, bubbly cheesy mixture you can count on it being absolutely delicious. Like this Summer Squash Gratin, for instance! It takes tender summer squash and pairs it with savory onions, a velvety rich cream sauce, and a blanket of nutty melted Gruyere so you can get your veggies in in the most delicious and comforting way.
5m prep time
30m cook time
2 tablespoons butter
1/2 white onion, thinly sliced
1 medium zucchini, sliced 1/4-inch thick
1 medium yellow squash, sliced 1/4-inch thick
2 cloves garlic, minced
1 tablespoon fresh thyme leaves
1/2 cup heavy cream
1/4 cup Parmesan, grated
1 cup Gruyere or Swiss cheese, grated
Kosher salt and freshly ground black pepper, to taste
Preheat oven to 450°F.
In a 6 to 8-inch oven-safe skillet, heat butter over medium heat. Add onion and cook until soft, about 4 minutes. Add garlic and cook 1 minute more.
Stir in cream, thyme, and salt and pepper and let cook until starting to thicken.
Stir in parmesan and squash and let bubble for 2-3 minutes. Spread squash out evenly, top with Gruyere cheese and bake until bubbly and golden brown, about 20 minutes. Let rest 5 minutes before serving. Enjoy!