"We're seeing gigante beans everywhere. They're creamy and buttery, and their size adds a dramatic look...."
INGREDIENTS
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1/2 cup pearled barley
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Kosher salt
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1 tablespoon finely grated lemon zest
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3 tablespoons fresh lemon juice
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1 tablespoon mayonnaise
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1 teaspoon Dijon mustard
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6 tablespoons olive oil, divided
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Freshly ground black pepper
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1 head cauliflower, cut into florets
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1 15-ounce can gigante, corona, or butter beans, rinsed
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1/2 cup flat-leaf parsley leaves, divided
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2 tablespoons fresh tarragon leaves, divided