March 1, 2018 | By Gus Pretzels In Last Day for Lenten Cheese Sandwich Calendar When: March 31, 2018 all-day 2018-03-31T00:00:00-05:00 2018-04-01T00:00:00-05:00 Events March 31 is the last day to purchase a Lenten Cheese Sandwich. Featuring Hautley Cheeses (American, Sharp Cheddar, and Mozzarella) on a Gus’ pretzel bun. $3.55 each. While supplies last.