Pick through crab to remove any shell, leaving large lumps intact.
Place in a bowl with the lobster meat.
In a separate bowl, mix together egg, mayonnaise, mustard and celery salt.
Add to lobster mixture and toss well, trying to not break up crabmeat.
Sprinkle 1/4 cup panko over mixture and mix well.
Refrigerate for 15 minutes.
Form into 4-oz cakes and roll in remaining panko until well coated.
Refrigerate until ready to cook.
Heat olive oil in saute pan.
Over medium heat, brown cakes on one side, approximately 2 minutes.
Flip cakes and place in 400-degree oven for approximately 5 minutes, or until heated through.