INGREDIENTS
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2 Tbsp butter
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2 Tbsp flour
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1 1/2 cups milk
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2 cups gruyere cheese, divided
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1/4 tsp salt
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1/4 tsp pepper
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4 large French rolls or hamburger buns
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2 Tbsp butter, softened
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3 Tbsp honey mustard dressing (O'Charley's)
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24 slices thinly sliced deli ham