Tuna steaks provide a surprising culinary experience, tasting more like steak than fish, making them a high-protein, quick-cooking, gourmet meal option.
How Long Should You Cook Tuna On The Grill And How Can You Tell When It's Done? - Tasting Table
"Tuna is great because it changes color as it cooks. It is easy to visually see its doneness. I love tuna rare especially if you are working with high quality tuna."