NOTE: to make this recipe vegan, substitute the eggs with egg substitute, the butter with EarthBalance/canola oil/applesauce and the milk with non-dairy milk
1 sheet frozen puff pastry (half of 17.3-ounce package), thawed (can use a basic tart dough instead)
2 tablespoons (1/4 stick) butter
3 large leeks (white and pale green parts only), coarsely chopped
1 teaspoon dried thyme
1/2 bunch Swiss chard, ribs removed, leaves chopped (about 2 1/2 cups)
1 1/4 cups whipping cream (or just whole milk)
3 large eggs
2 large egg yolks
1 teaspoon salt
1/4 teaspoon ground black pepper
Pinch of ground nutmeg
Roll out pastry on floured work surface to 12-inch square. Transfer to 9-inch-diameter glass pie
dish. Trim overhang to 1 inch. Fold under; crimp edges. Cover; chill.
Melt butter in large nonstick skillet over medium-low heat. Add leeks and thyme. Sprinkle with
salt and pepper. Cover; cook until leeks are very tender but not brown, stirring often, about 10
minutes. Add chard; saute until wilted, about 2 minutes. Remove from heat; cool.
Position rack in bottom third of oven; preheat to 425°F. Whisk cream and next 5 ingredients in
large bowl. Mix in cooled leek mixture. Pour filling into crust.
Bake tart 15 minutes. Reduce heat to 350°F and bake until filling is puffed and just set in center,
about 15 minutes longer (this took my oven about 10 minutes longer). Transfer to rack; cool 10