"Switch up your weeknight dinner routine with this yummy dish!..."
INGREDIENTS
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6 boneless, skinless chicken breasts
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1 1/2 cups sharp cheddar cheese, grated
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3/4 cup whole milk
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1/2 cup parmesan cheese, grated
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3 tablespoons unsalted butter
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2 tablespoons all-purpose flour
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1 1/2 tablespoons whole grain mustard
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1/2 teaspoon garlic powder
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kosher salt and freshly ground pepper, to taste