INGREDIENTS
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(packed) flat-leaf parsley (leaves and stems)
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olive oil
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fresh lemon juice
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Champagne vinegar
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garlic clove, crushed
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Kosher salt and freshly ground black pepper
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medium head of radicchio, cored, leaves coarsely torn
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Kosher salt and freshly ground black pepper
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15-ounce cans cannellini (white kidney) beans, rinsed, drained
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celery stalks, peeled, sliced thinly on an extreme diagonal
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drained olive oil–packed tuna in a jar or good-quality canned tuna, broken into large pieces
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Flat-leaf parsley sprigs (for garnish)