To make a tortilla tower, you'll first need to gather your ingredients. You can buy pre-made tortillas at most grocery stores, or you can make your own using ingredients you have on hand. To start, preheat your oven to 350 degrees F (180 degrees C) and prepare the oven rack to the lowest setting. Place the tortilla stack on the rack in the preheated oven. Bake the tower for 20 to 25 minutes or until the cheese is melted and the toppings are bubbling.