Pizza with Mushrooms, Olives, Tomatoes & Mozzarella

Pizza with Mushrooms, Olives, Tomatoes and Mozzarella
This is going to be one of the simplest pizza I ever made. You want to know why?...Here is the answer:
1. All ingredients are fresh, so it will be only washing and chopping.
2. Leftover tomato sauce (or even I will allow store-bought).
3. Flatbread or Naan bread will be the crust.