In a medium bowl, stir together the mayonnaise, mint and lemon juice. Add the artichoke hearts, hearts of palm and avocado and toss to combine. Season with salt.
In a bowl of water, peel the pomegranate to release the seeds; drain. Spoon the tossed salad onto the lettuce leaves and sprinkle the pomegranate seeds on top.
Not amazing. Lacks flavor.