Boring tuna melt? Blast off to flavor town! Try a Korean kimchi melt with gochujang mayo, explore the Mediterranean with sun-dried tomatoes and feta, add fancy cheese like gruyere, or sneak in veggies like roasted peppers. Spice it up with sriracha, go open-faced with a fried egg, or ditch the bread for a tuna wrap! The possibilities are endless - get creative and enjoy your tuna melt adventure!