This recipe is from the book Vegan Brunch by Isa Chandra Moskowitz. Feel free to sub all quinoa flour for the corn flour or vice-versa if you don't have both on hand. I have also used chickpea flour. Whatever you do, just don't use cornmeal; it's much coarser than corn flour.
This Tasty Tuna Melts recipe contains white tuna in water, whole wheat english muffins, tomatoes, kraft shredded mild cheddar cheese, kraft real mayo mayonnaise.