Heat oven to 400°F (or lower, as your focaccia recipe directs).
Prepare your ingredients. See above for tips.
Lightly oil your baking dish. Place the dough into the dish, drizzle a little olive oil on your hands to grease them, and gently pat the dough flat—either to the edges of the dish, or in a freeform shape of your choosing.
Drizzle more olive oil on top (a tablespoon or two), then decorate with your prepared toppings.
Bake for the time called for in your focaccia recipe, adjusting as necessary depending on the baking dish used.