1 ½ pounds yellowfin 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 sillets with salt to taste. Brush one sideof yellowfin  with egg white. Spread
sesame seeds on plate. Gently press each ahi 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 ahi fillets sesame seed side down in pan and cook
until lightly golden on bottom, about 3 minutes.
•Turn each yellowfin 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