Grab 1 head of romaine lettuce and remove 2 to 3 of the outer leaves, then cut the head of lettuce 6 inches from the top, discard the root, seperate the leaves from the 6 inch piece to create your lettuce wraps, rinse them under cold running water and add to a salad spinner or pat dry with a dish cloth
Add 2 tins of Spanish tuna to a sieve with a bowl underneath and move the tuna around to release all the oil, then transfer the tuna to a large bowl, add 2-3 tablespoons of low-fat mayonnaise to the bowl, 1 finely diced shallot, 1 roughly diced tomato and 8 roughly diced black Spanish olives, season everything with 1 teaspoon of parsley flakes, 1/2 teaspoon of garlic powder, sea salt and freshly cracked black pepper, mix together until well combined
Evenly divide the tuna mixture into 8 lettuce wraps, thinly slice 1 avocado and add 2 slices to each lettuce wrap, season the avocado pieces with sea salt and freshly cracked black pepper, enjoy!
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