Tuna Niçoise salad

Ingredients

• • 4 cups utter lettuce or tender mixed greens
  • 2 cans water-packed, no-salt-added tuna (5 oz each), drained
  • 4 hard-boiled eggs, peeled and halved
  • ½ lb green beans, trimmed and blanched
  • 1 lb baby potatoes, halved and boiled
  • 1 cup cherry tomatoes, halved
  • ¼ cup Niçoise or Kalamata olives, pitted
  • 4 radishes, thinly sliced
  • ½ cucumber, thinly sliced
  • 3 Tbsp red wine vinegar
  • 1 tsp Dijon mustard
  • 1 garlic clove, minced
  • ¼ cup olive oil
  • 1 tsp fresh thyme leaves or 1/2 tsp dried
  • ½ tsp each salt and freshly ground black pepper, or to taste