This high-protein salad features a surprising ingredient.Reviewed by Dietitian Annie Nguyen, M.A., RDKey PointsMiranda Lambert's apple tuna salad was a high-protein staple after having bariatric surgery.Packed with tuna, eggs and apples, the salad adds fun flavor to a protein-focused meal plan.Sticking to high-protein goals feels easy, thanks to this recipe that's become a favorite.After deciding to have bariatric surgery, there were a few chang…