This indulgent panini is a perfect balance of bold flavors and satisfying textures. It features tender, juicy roasted beef layered with melted mozzarella cheese that adds a creamy, savory richness. Crisp lettuce and fresh tomato slices bring a refreshing crunch, while the hearty beef is complemented by a zesty drizzle of ketchup and smooth, creamy mayo. Sandwiched between golden, toasted panini bread, this creation offers a delightful mix of smoky, savory, and fresh flavors in every bite—a truly irresistible meal or snack for any time of day.