February 19, 2012 No Comments FREE Muffin Sandwich at Del Taco Print out the coupon and redeem for a FREE Muffin Sandwich with any purchase at participating Del Taco restaurants. Expires 2/24/12. Restaurant locator. FREE Muffin Sandwich at Del Taco -EXPIRED Facebook Twitter Add Comment Notify me of follow-up comments by email. Notify me of new posts by email.