Kale Tarts With Fennel And Olives

Name: Kale Tarts With Fennel And Olives
Ingredients: 2 tablespoons olive oil, plus more for drizzling; 1 medium yellow onion, diced; 1 medium bulb fennel, quartered, cored, and thinly sliced; 2-3 cloves garlic, finely chopped; 1 medium bunch Lacinato kale, stems removed, chopped into bite-sized pieces; 1/3 cup crumbled feta cheese, plus more for topping; 1/4 cup kalamata olives, pitted and finely chopped; 2 tablespoons chopped fresh parsley; Fresh ground black pepper; 1 17-oz. package (2 sheets) puff pastry, thawed; 3 tablespoons unsalted butter, melted