"Make it a day ahead and brunch will be easy-peasy...."
INGREDIENTS
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1 refrigerated pie crust (from a 14-oz. box)
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4 large eggs
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1 c. half-and-half
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1 tbsp. chopped fresh parsley, plus more for serving
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1 tbsp. dijon mustard
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1 1/2 tbsp. all-purpose flour
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1/4 tsp. kosher salt
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8 oz. package diced ham
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1 c. shredded sharp cheddar cheese
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1 small shallot, finely chopped