INGREDIENTS
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2 tablespoons Dijon mustard
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1/2 cup oil-packed sun-dried tomatoes, drained, reserving 1 tablespoon oil
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1/2 loaf ciabatta bread (about 5 ounces), split horizontally and hollowed out
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Romaine lettuce leaves
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6 ounces fresh mozzarella, sliced
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1/2 cup fresh flat-leaf parsley, leaves
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Coarse salt and ground pepper