Preheat oven to 375 degrees F. In a medium bowl use a sturdy spoon or your dough hook to combine 1 cup of self rising flour and the greek yogurt until the dough begins to pull away from the sides. Sprinkle in extra flour if needed. Dust a piece of parchment paper with self rising flour and gently press the dough into a rectangle shape, about 10 inches long by 5 inches wide. Use a sharp knife to cut at least 8 breadsticks. Spray the tops with cooking spray and sprinkle with the garlic salt to your desired taste. Bake for 17 to 19 minutes, or until tops are lightly golden brown. Let cool slightly before enjoying!