Preheat the oven to 180℃.
Marinate feta cheese with olive oil, roasted garlic, thyme, and salt. Set aside.
Place 1 sheet of filo pastry on your work table. Brush with melted butter and fold it in half. Apply butter on top of the folded sheet too (you will get a rectangular-shaped sheet).
Add 1 teaspoon of harissa paste and spread it on the rectangular sheet.
Place 1 piece of feta on one end of the pastry and fold it vertically from both sides of the pastry, covering the Feta cheese. Apply butter and fold it horizontally till the end of the sheet.
Place on a baking tray with the loose end facing the tray. Brush butter on top, sprinkle some sesame seeds, and bake for 10-12 minutes or until golden brown.
Meanwhile, add the honey and the remaining harissa paste into a small pan, place over medium heat and bring to a simmer.
Serve warm with a generous drizzle of honey.