For vegetarians, omit the smoked mackerel and add a little seaweed powder. You’ll find a wide variety of Irish seaweeds available in most health food shops and speciality food stores.
Flake the smoked mackerel with a fork and mix into the fresh tomato salsa. Spread a little chipotle mayonnaise onto each tostada and topped with shredded lettuce. Spoon over the smoked mackerel ...