Test your springform pan with water for leakage before getting started. If it leaks, tightly wrap the bottom and halfway up the side of the pan with two layers of foil before filling it.
1 medium onion, finely chopped
2 tsp. unsalted butter
20 oz baby spinach, coarsely chopped
2 T. water
4 large eggs, lightly beaten
2 cups skim (fat-free) milk
1 cup finely grated Parmigiano-Reggiano (1 1/2 oz)
1/2 tsp. salt
1/4 tsp. black pepper
3/4 tsp. freshly grated nutmeg
Accompaniment: frico
Cook onion in butter, covered, in a 6- to 8-quart heavy pot over moderately low heat, stirring occasionally, until softened, about 10 minutes. Add spinach and water and cook, covered, over moderately high heat, stirring occasionally, until just wilted, about 4 minutes. Drain in a large sieve set over a bowl, pressing on spinach. (Discard liquid.) Preheat oven to 350°F. Lightly oil springform pan. Whisk together eggs, milk, cheese, salt, pepper, and nutmeg in a large bowl, then stir in spinach. Spoon into springform pan, spreading evenly, and bake until custard is set and no longer wet in center, 50 to 55 minutes. Cool 10 minutes in pan on a rack, then run a sharp knife around edge to loosen and remove side of pan. Cut into 8 wedges and serve warm or at room temperature. You can top the spinach parmesan custard with some broken-up frico for added crunch or simply enjoy them on the side.
1/8 147 calories
Parmesan Crisps (Frico)
1 (3-oz) piece Parmigiano-Reggiano
1 T. all-purpose flour
1/4 tsp. black pepper
Special equipment: a nonstick bakeware liner such as a Silpat pad
Preheat oven to 375°F. Using largest holes on a 4-sided grater, coarsely shred enough cheese to measure 1 cup. Line a large baking sheet with nonstick liner. Stir together cheese, flour, and pepper. Arrange T. of cheese 4 inches apart on liner, stirring cheese in bowl between T. to keep flour evenly distributed. Flatten each mound slightly with a metal spatula to form a 3-inch round. Bake frico in middle of oven until golden, about 10 minutes. Cool 2 minutes on sheet on a rack, then carefully transfer each crisp (they are very delicate) with metal spatula to rack to cool completely. Cooks’ note: Crisps can be made 3 days ahead and kept, layered between wax paper, in an airtight container at room temperature.
Makes 12 crisps Each (1 1/2-frico) serving about 32 calories and 2 grams fat