WILMINGTON, Del. - Chain restaurant Quiznos Global LLC on March 14 filed for Chapter 11 bankruptcy in the U.S. Bankruptcy Court for the District of Delaware and issued an official announcement that it has reached an agreement with its senior lenders on a prepackaged restructuring plan that will reduce debt by more than $400 million (In Re: Quiznos Global LLC, No. 14-10557, Chapter 11, D. Del. Bkcy.).