The company named John Garilli to the interim role.
Pappas and his brother own more than one-third of the brand.
Today, 63 of 108 stores have reopened dining rooms.
Amid COVID-19, 39 company-run and 59 franchised stores are currently operating.
Today, 34 Luby’s and three Fuddruckers remain open.
The multi-concept company's sales and traffic continue to decline.