Lamb Fattoush Bowl

Name: Lamb Fattoush Bowl
Ingredients: 1 small red onion, 1/2 very thinly sliced and 1/2 finely chopped; 6 tablespoons extra-virgin olive oil; 1 pint cherry or grape tomatoes, halved or quartered if large; Kosher salt; 1 pound ground lamb; 1 teaspoon za’atar, plus more for topping; Freshly ground pepper; 1 tablespoon harissa; Grated zest of 1 lemon, plus 2 tablespoons lemon juice; 1 7-ounce bag pita chips (4 1/2 cups), lightly crushed; 1 small English cucumber, peeled and chopped; 5 ounces feta cheese, crumbled (about 1 cup); 3/4 cup roughly chopped fresh mint