Ditalini With Tender Herbs, Chickpeas & Yogurt

Name: Ditalini With Tender Herbs, Chickpeas & Yogurt
Prep time: 25 min
Cook time: 30 min
Total time: 55 min
Cuisine: American
Ingredients: 5 ounces (1 1/2 cups) ditalini (or another short dry pasta, such as macaroni or penne); 3 cups chicken or vegetable stock or water, divided; 3 tablespoons butter, divided; 3 anchovy fillets; 3 garlic cloves, smashed, peeled, and chopped; 6 cups roughly chopped tender herbs and/or greens (such as dill, parsley, basil, arugula, radish tops, beet tops, etc), plus a handful to serve; 1 (15.5-oz.) can chickpeas, drained and rinsed; Kosher salt and freshly ground black pepper; 1/3 cup whole-milk Greek yogurt, plus more to serve; Lemon zest and juice, to taste