Sesame Crusted Bluefin Tuna

1 ½ pounds bluefin tuna, cut into 4 equal pieces 1/3 cup sesame seeds
salt      1 tbsp. butter
1 egg white, lightly beaten   ½ lemon, cut into wedges

•Season bluefin tuna fillets with salt to taste. Brush one side with egg white. Spread
sesame seeds on plate. Gently press each bluefin tuna fillet, egg side down, into
sesame seeds to coat.
•Melt butter in large nonstick skillet over low heat, being careful
not to brown butter.  Place bluefin tuna fillets sesame seed side down in pan and cook
until lightly golden on bottom, about 3 minutes.
•Turn each tuna fillet to other side, cover and cook over low heat until
fish flakes easily, 4 to 5 minutes.  Garnish with lemon wedge. Makes 4
servings