Mediterranean Tuna Antipasto Salad for Two

Name: Mediterranean Tuna Antipasto Salad for Two
Ingredients: 1/2 15- to 19-ounce can beans, such as chickpeas, black-eyed peas or kidney beans, rinsed, or 1 7-ounce can; 1 5- to 6-ounce can water-packed chunk light tuna, drained and flaked (see Note); ½ large red bell pepper, finely diced; ¼ cup finely chopped red onion; ¼ cup chopped fresh parsley, divided; 2 teaspoons capers, rinsed; ¾ teaspoon finely chopped fresh rosemary; 4 tablespoons lemon juice, divided; 2 tablespoons extra-virgin olive oil, divided; Freshly ground pepper, to taste; ⅛ teaspoon salt; 4 cups mixed salad greens