Don't limit yourself with the choice of foccacia toppings. The number of options makes it as varied as the pizza. You can use salt, rosemary, olives, olives, cherry tomatoes, goat cheese, figs, onions, bell peppers, asparagus, radishes or mushrooms - use whatever you like! The main thing to remember is that focaccia is baked at high temperatures, so cut everything coarsely: thin slices of toppings can burn a lot.