For the dough: 4 cups flour (about 500 grams) • olive oil or any neutral oil (60 ml) • yeast • sugar • salt. Warm water as needed • For the filling: 1 pound ground beef (about 450 grams) • tomatoes, grated and drained of excess water • onions, finely chopped (or more, as you prefer) • Green bell pepper, red bell pepper • minced garlic • parsley, finely chopped • tomato paste •