Tuna melts are just fancied-up tuna salad sandwiches that have accessorized — with better bread, cheese, and tomatoes. They’re good. But, if you always make them with canned tuna and plain mayo, these are in a league all their own. Bursting with fresh flavors, these tuna melts will blow all others out of the water.
Start with fresh, grilled tuna, which means more meaty, less water-logged texture. Then turn ordinary mayo into aioli. Aioli is just garlic mayonnaise, but adding parsley, …