Recently on the Recipes for Health page on Facebook, I asked readers what they were finding in their weekly delivered produce boxes. Requests for spaghetti squash recipes came pouring in. I was working on basil dishes already, so I decided to combine the two ingredients in this gratin.
Oil a 2-quart gratin or baking dish. Heat the oil over medium heat in a large, heavy skillet, and add the onion. Cook, stirring, until tender, about five minutes. Add the garlic and a generous pinch of salt. Cook, stirring, for another 30 seconds to a minute until fragrant. Add the squash. Cook, stirring often, for five minutes until the strands of squash are a little more tender. Season to taste with salt and pepper, and remove from the heat.
03Beat the eggs in a large bowl. Add the milk, salt (about 1/2 teaspoon), pepper and basil. Stir in the squash mixture and the Gruyère, and combine well. Scrape into the baking dish. Sprinkle the Parmesan or pecorino over the top, and gently press down to moisten.
04Bake 40 to 45 minutes until nicely browned and sizzling. Remove from the heat, and allow to cool for 10 to 15 minutes before serving. Serve hot, warm or room temperature.