Roll flatbread dough out into a thin round, about 1/8 inch. Spread with sauce. Arrange mozzarella, olives and chicken on top of flatbread.
Bake at 400° for 10–12 minutes or until cheese has melted and dough is crispy.
Tomato Basil Sauce (Makes 4 cups)
Heat a medium saucepot over medium-high heat with oil, and sauté onion with garlic until the onion is golden, 5 minutes. Add tomatoes and simmer for about 15 minutes.
Carefully ladle tomato mixture in a blender or use a hand blender and process until smooth. Season sauce with basil, salt, pepper and sugar.
Use or cool down and refrigerate. Store in an airtight container for up to 1 week in the refrigerator or freeze for about 1 month.