Spinach + Feta Cookies (Spanakopita Cookies)

Name: Spinach + Feta Cookies (Spanakopita Cookies)
Prep time: 10 min
Cook time: 15 min
Total time: 25 min
Cuisine: Mediterranean, European, Greek
Ingredients: 1 egg, (lightly beaten); 4 tbs olive oil ((or melted butter)); 1/4 cup Greek yogurt; 1½ cups chopped baby spinach; 1 tbs chopped dill; 1 tbs chopped scallions; salt and pepper (to taste); 4 oz feta cheese, (crumbled); 1/3 cup shredded mozzarella; 1 cup self rising flour (*)