Harissa seasoning, ginger, cumin, and garlic can create an interesting and flavorful profile for a smash burger. Harissa adds heat and depth with its blend of spices, while ginger provides a subtle warmth that can complement the richness of the beef. Cumin adds earthiness, and garlic enhances the overall flavor.
Using these seasonings could turn your smash burger into a unique fusion dish. To balance the flavors, you might consider using moderate amounts of each seasoning to avoid overwhelming the burger, especially if you want the beef flavor to shine through. You could also pair it with toppings like yogurt sauce, pickled vegetables, or fresh herbs to complement the spice. Overall, it's a creative choice that could result in a delicious and distinctive burger!