Bake the pizza: When the oven is ready, dust a pizza peel with cornmeal or semolina flour. (If you don’t have a pizza peel, you can use a rimless baking sheet or the back of a rimmed baking sheet. But a pizza peel is well worth the investment!) Stretch the dough into a circle; see How to Stretch Pizza Dough for instructions. Then gently place the dough onto the pizza peel.
Spread the refried beans over the dough using a spatula to create a thin layer. Add the cheddar cheese, then top with black olives and half of the green onions. Top with a pinch of kosher salt.
Use the pizza peel to carefully transfer the pizza onto the preheated pizza stone. Bake the pizza until the cheese and crust are nicely browned, about 5 to 7 minutes in the oven (or 1 minute in a pizza oven).
Top with the reserved green onions, chopped tomatoes and romaine, and crumbled tortilla chips. Drizzle with ranch dressing and if desired, sprinkle with hot sauce. Slice into pieces and serve immediately.