From Swiss chard season (early summer) to winter squash season (late fall) this is always a hit at our pot-lucks. We have included two easy pastry recipes and have only tested this with homemade pastry in standard 9-inch glass or enamel pie plates. If you want to use commercial 9-inch frozen crusts, choose deep-dish and it will be just fine, but you may need to butter a custard cup or two to bake the excess filling because they are always smaller.
Makes 6 servings
Pastry for 9-inch single-crust pie, recipes follow
2 tablespoons olive oil
1 cup chopped green or yellow onions
3 cups prepared vegetable, see Note
3 tablespoons all-purpose flour
3/4 teaspoon salt
1/4 teaspoon dried thyme
1/8 teaspoon freshly milled black pepper
3 large eggs
1 1/2 cups half-and-half or whole milk
1 1/2 cups shredded Jarlsberg, Swiss, or your favorite cheese
Prepare pie crust. On a floured board, roll out pastry to make an 11-inch round; fit into a standard 9-inch pie plate. Fold edge over and flute.
Preheat oven to 375°F. Heat oil in a large skillet over medium heat. Add onions and sauté until lightly browned, about 3 minutes. Stir in prepared vegetable and cook until hot through, 2 to 3 minutes. Stir in flour, salt, thyme, and black pepper. Beat eggs until frothy in a medium bowl; brush a little egg over the bottom of the pie crust. Beat the half-and-half into the remaining eggs. Layer half of the cheese, the vegetable mixture, and the remaining cheese into the pie crust. Pour the cream mixture over all.
Bake quiche until center appears set when pie plate is gently tapped, 40 to 45 minutes. Set aside 5 minutes before cutting.
Note: Almost any vegetable or mixture of vegetables can be used in a quiche. If you are using asparagus, broccoli, celery, eggplant, fresh corn, bell peppers, summer squash, mushrooms, or zucchini, they should be sliced, added to the skillet raw, and sautéed with the onions. Carrots, green or yellow beans, peas, potatoes, sweet potatoes, or winter squash should be parboiled and drained thoroughly before adding. Greens such as arugula, beet greens, collards, kale, mustard, spinach, Swiss chard, or turnip greens should be steamed, simmered or stir-fried until wilted, thoroughly drained, and coarsely chopped before adding.