The Naugles fast food restaurant chain was founded by Dick Naugle in 1970 and lasted until 1988, with a few stores remaining until circa 1994/95. It featured an American and a Mexican kitchen. Popular items included the cheese burrito, the bun taco, the combo cup w/ chips, the Naugleburger, the Ortega burger and more. A new business group formed in the last few years has been working on bringing the chain back (see articles at The Orange County Register, OC Weekly and Wikipedia). This effort is not affiliated with Del Taco or with any prior owner of the brand.
Dick Naugle Says:
Prepare Food Fresh
Serve Customer Fast
Keep Place Clean
Here's some commercials made around 1986 and featuring the actors Avery Schreiber and Roger Carmel playing the character of Señor Naugles: