"Feed a crowd during the holidays with this big-batch make-ahead quiche. It teams a rich sesame seed-studded crust with a cheesy spinach filling...."
INGREDIENTS
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Unbleached all-purpose flour, for dusting
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1 sheet (14 ounces) frozen all-butter puff pastry, such as Dufour, thawed
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10 large eggs, plus 1 egg white
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1/4 cup white sesame seeds
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10 ounces frozen chopped spinach, thawed, drained, and squeezed dry
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3 ounces cheddar, coarsely grated (1 cup)
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1 1/4 cups heavy cream
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Kosher salt and freshly ground pepper