Italian Potato Salad

Name: Italian Potato Salad
Ingredients: 2 pounds small Yukon gold or red potatoes (no larger than 2-inches in diameter); 1 tablespoon plus 1 teaspoon kosher salt, divided; 12 ounces green beans; 1 pint cherry or grape tomatoes (about 10 ounces); 1/2 cup loosly packed fresh parsley leaves; 2 cloves garlic; 2 sprigs fresh rosemary; 1/3 cup olive oil; 1/4 cup red wine vinegar; 1/4 teaspoon freshly ground black pepper