Exhibit 99.1

JOINT FILING AGREEMENT

This Joint Filing Agreement, dated as of July 9, 2015, is by and among Pleasant Lake Partners LLC, PLP MM LLC, Pleasant Lake Onshore GP LLC, PL Opportunities GP LLC, Pleasant Lake Offshore Master Fund L.P., Pleasant Lake Opportunities Fund LP and Jonathan Lennon (collectively, the "Filers").

Each of the Filers may be required to file with the United States Securities and Exchange Commission a statement on Schedule 13D and/or 13G with respect to shares of Common Stock of Del Taco Restaurants, Inc. beneficially owned by them from time to time.

Pursuant to and in accordance with Rule 13(d)(1)(k) promulgated under the Securities Exchange Act of 1934, as amended, the Filers hereby agree to file a single statement on Schedule 13D and/or 13G (and any amendments thereto) on behalf of each of the Filers, and hereby further agree to file this Joint Filing Agreement as an exhibit to such statement, as required by such rule.

This Joint Filing Agreement may be terminated by any of the Filers upon written notice or such lesser period of notice as the Filers may mutually agree.

Executed and delivered as of the date first above written.

PLEASANT LAKE PARTNERS LLC

By: PLP MM LLC

its Managing Member

By: /s/ Jonathan Lennon

Jonathan Lennon, Manager

PLP MM LLC

By: /s/ Jonathan Lennon

Jonathan Lennon, Manager

PLEASANT LAKE ONSHORE GP LLC

By: /s/ Jonathan Lennon

Jonathan Lennon, Manager

PL OPPORTUNITIES GP LLC

By: /s/ Jonathan Lennon

Jonathan Lennon, Manager

PLEASANT LAKE OFFSHORE MASTER FUND L.P.

By: Pleasant Lake Onshore GP LLC

its General Partner

By: /s/ Jonathan Lennon

Jonathan Lennon, Manager

PLEASANT LAKE OPPORTUNITIES FUND LP

By: PL Opportunities GP LLC

its General Partner

By: /s/ Jonathan Lennon

Jonathan Lennon, Manager

JONATHAN LENNON

By: /s/ Jonathan Lennon

Jonathan Lennon, Individually