cooking.nytimes.com
I have always had a weakness for tuna burgers, and I like these even more than the classic all-fish burger because the mushrooms assure a moist texture. They are inspired by a recipe by Clifford Pleau, which was presented at the 2015 Worlds of Healthy Flavors conference. If you use sushi-grade tuna for these burgers you might want to just sear them on each side to get a rare, sushi-like interior. If you use ahi tuna, you could still cook them rare, or cook them for about 2 minutes on each side. This will produce a burger that is more well done but still nice and moist. The burgers are delicious either way. Don’t use a food processor to chop the tuna; finely chop with a knife or a cleaver. The texture will be too pasty if you use a food processor. I found that the punch of the wasabi paste dissipated when the burgers were cooked, so add more if desired.