Place tuna steaks in pan, leaving enough room between each. Cook to your desired level of doneness; 30 to 45 seconds per side for rare and 60 to 90 seconds per side for medium-rare.

So, in general, you only need to cook your tuna steak for a minute or two per side. Visually, Lopez noted that as long as the tuna "turns opaque but the inside stays red," then it's ready to serve.

For the ahi-chile: 1 pound trimmed sushi-grade sushi-grade ahi or bluefin tuna, cut into 3/4-inch pieces 3/4 cup 1/2-inch fresh pineapple pieces 3 ounces English cucumber, peeled, halved ...