Nothing beats a quality cut of meat from a proper butcher, Or fresh fish (fresh as in, caught that day).
I would say Tuna (fresh steaks) is my favourite fish, just fry the steaks in a hot pan dressed with dried mint, tarragon, olive oil, sea salt, lemon juice and a dash of Tabasco to give it that extra kick, just rub all that onto the flesh then pan fry.
Don't overcook though because they are like beef steaks, they can become too dry but you can serve them pink in the middle.
Also nothing beats French fries with sea salt and rosemary. Try it next time you buy them, just sprinkle some sea salt and dried rosemary over them before cooking, makes them taste so much better.