Mix together the egg, bread crumbs, may, scallion, parsley, Worcestershire sauce, mustard, salt, and pepper in a med bowl. Fold in the crabmeat. Use your hands to form the mixture into 8 balls, then press into small patties.
Heat the oil in a large skillet over med heat. Add the crab cakes and cook for 3 to 4 mins on each side, until deep golden brown.
Transfer to paper towels to drain. Serve hot, passing lemon wedges and tartar sauce at the table.