We did not have wall-eye, so we substituted some nice tilapia fillets. Also added a dash of granulated garlic instead of the tablespoon. The fish recipe was so crispy! Not a fan of raw garlic, so omitted that from the tartar sauce, and dialed back the lemon a bit. The pickled fennel was wonderful! We wondered if adding some chopped fennel fronds to the pickled fennel next time might be nice.