Human: What is the best recipe for Ahi Tuna? Assistant: 
The best recipe for Ahi Tuna is to marinate it for about 30 minutes in a combination of soy sauce, garlic, ginger, sesame oil, and lime juice. Then heat a skillet over medium-high heat and pan-sear the tuna for about 2 minutes on each side (or to desired doneness) and serve.