Crispy Chickpea Fattoush with Asparagus and Radishes

Name: Crispy Chickpea Fattoush with Asparagus and Radishes
Ingredients: 1 16-ounce can of chickpeas, drained and rinsed; 2 large or 3 small pita breads, torn or cut into bite-sized chunks (about 3 cups in total); 1 large bunch asparagus (about 1 pound), trimmed and cut into 2-inch pieces; 4 tablespoons olive oil, divided; 1 tablespoon za’atar, divided, plus more for finishing the dish; Kosher or sea salt plus freshly ground black pepper, to taste; Juice from 1 large lemon, divided; 6 to 8 large radishes, thinly sliced (about 1 cup in total); 1/4 cup pistachios (raw or roasted and salted), chopped; 1/4 cup chopped fresh dill; 2 tablespoons chopped fresh mint; 1 cup whole-milk yogurt (regular or Greek)