In a bowl, mix together the Panko, mayonnaise, seafood seasoning, parsley, mustard, egg, and crabmeat. Stir gently to combine, being careful not to break up the crab lumps too much.
1 cup Panko bread crumbs, 2 tablespoons mayonnaise, 2 tablespoons seafood seasoning, 2 teaspoons fresh parsley, 1 teaspoon yellow mustard, 1 egg, 15 ounces lump crabmeat