Easy Grilled Shrimp with Cilantro Salsa Verde

Name: Easy Grilled Shrimp with Cilantro Salsa Verde
Ingredients: 1 cup fresh cilantro leaves and tender stems, coarsely chopped, plus more for garnish; ¼ cup fresh flat-leaf parsley leaves, coarsely chopped; 2 cloves garlic, halved; 2 limes, juiced; 4 tablespoons olive oil; ½ teaspoon salt, divided; ¼ teaspoon ground pepper; 1 (15 ounce) can no-salt-added white beans, rinsed; 1 pint grape tomatoes, halved; 1 medium cucumber, seeded and chopped; 1 pound large (21-25 count) shrimp, peeled and deveined