01 - Combine warm water, sugar, and yeast in a large bowl. Let mixture stand for 5 minutes until foamy and activated.
02 - Add olive oil, salt, and flour to the yeast mixture. Stir until dough forms, then knead on a floured surface for 8 minutes until smooth and elastic.
03 - Place dough in an oiled bowl, cover with plastic wrap or a towel, and let rise in a warm place for 1 hour until doubled in size.
04 - Preheat oven to 375°F. Grease a 9-inch round or square baking dish with butter or oil.
05 - Punch down risen dough and roll out to a 1/2-inch thick rectangle. Sprinkle surface evenly with olives, sun-dried tomatoes, feta, parsley, basil, garlic, oregano, and black pepper.
06 - Cut filled dough into 2-inch squares. Stack squares into small piles, then arrange standing upright in the prepared baking dish, fitting pieces closely together.
07 - Drizzle assembled dough with olive oil and sprinkle with sesame seeds. Bake for 30 minutes until golden brown and cooked through.
08 - Allow bread to cool in the dish for 10 minutes before serving warm.