Fast Casual:

Smashburger has introduced its Fresh Mex Burger, available through April 29 in restaurants nationwide.

The burger is topped with fresh avocado, chopped cilantro, onions, pepper jack cheese, lettuce, tomato, sour cream and spicy chipotle mayo on a Mexican roll, and is served with a wedge of lime. Guests also may opt for a Fresh Mex chicken sandwich served with the same combination on one of Smashburger’s marinated chicken sandwiches.

The burger flavor combination was originally created as the local burger for the San Diego market. In conjunction with the limited-time offer, Smashburger is inviting guests to check out its Facebook page March 22 to receive a free entrée with the purchase of the new Fresh Mex Burger and Chicken Sandwich.