Step 1

Add the drained albacore tuna into a medium size bowl then add in the mayonnaise, Dijon mustard, sweet relish, red onion, Cajun seasoning, and black pepper.

Step 2

Mix all of the ingredients together until they are fully combined. Set the tuna salad aside and toast the bread.

Step 3

Add some butter or olive oil to a cast iron skillet and toast the bread on both sides until it is golden brown. Alternatively, you can use a toaster.

Step 4

Once the bread is toasted, add equal portions of sliced avocado to each slice of bread. Then top the avocado with about ¼ cup of the prepared tuna salad and spread it out evenly.

Step 5

Top the tuna with the lettuce. Cut the tunacado sandwich in half, and enjoy!