Preheat the Oven: Begin by preheating your oven to 350°F (175°C). This will get it ready for baking your delicious Byrek.
Prepare the Filling: In a mixing bowl, combine the chopped spinach, crumbled feta cheese, eggs, olive oil, and a pinch of salt and pepper. This is your scrumptious filling.
Layer the Phyllo Dough: Carefully unroll the phyllo dough and place one sheet on the bottom of a greased baking dish. Brush it lightly with some olive oil. Repeat this process, adding one sheet at a time and brushing each one with olive oil until you've used about half of the phyllo sheets.
Add the Filling: Spread the spinach and feta filling evenly over the phyllo layers.
Top with More Phyllo: Continue layering the remaining phyllo sheets on top of the filling, brushing each sheet with olive oil.
Bake It: Place your Byrek in the preheated oven and bake for about 30-35 minutes, or until it turns a lovely golden brown and becomes delightfully crispy.
Serve and Enjoy: Once it's done, take it out of the oven and let it cool for a few minutes. Cut it into squares and serve this warm, flaky, and mouthwatering Spinach and Cheese Byrek to your family and friends.