Warm Summer Vegetable Salad

Name: Warm Summer Vegetable Salad
Ingredients: 1 small red onion, thinly sliced; 2 anchovy fillets, mashed; 1/4 cup red wine vinegar; 2 Yukon Gold potatoes (1 pound), peeled and cut into eighths; 1/2 pound mixed beans, such as green and yellow romano beans and string beans, halved crosswise; 2 small zucchini, sliced crosswise 1/4-inch thick; 2 small yellow squash, sliced crosswise 1/4-inch thick; 1/4 cup plus 1 tablespoon extra-virgin olive oil; 1/4 cup chopped basil; 1 garlic clove, finely grated; Salt; Freshly ground black pepper