Mt. Laurel for dinner and breakfast
We moved out of that area a year ago, but here are the restaurants we liked that are within a 5-10 minute drive of the Turnpike ramps.
El Azteca for hole-in-the-wall Mexican (Rt 73 at Church Rd/Ramblewood)
Pietro's for Italian and pizza (Rt 70 in Marlton)
Redstone American Grill (Rt 73 in Marlton)
(Both Pietro's and Redstone have a few other locations, but they're not really what I would consider "chains"...)
Mexican Food Factory (Rt 70 in Marlton)
For breakfast, I have no solid recommendations, but I would absolutely, positively avoid the Sage Diner. We had a terrible experience not long before we moved - they served us pancakes made with rotten eggs, and then handled the mistake very badly. The Marlton Diner on Rt 70 is okay.
I have to disagree with Truman about the diners. I have been going to the Sage Diner for many years, averaging once a month or so. I have never experienced anything but above-average diner fare and excellent service. No exceptions, I stopped going to the Marlton Diner several years ago due to slow service and below average food. Now I just noticed your post was for meals in August. Hope you found something enjoyable.
The Sage Diner is a disaster. The staff is very arrogant. The food is less then mediocre.
I walked in there once with a mostly empty bottle of Perrier (water) I did not want to waste by leaving it in the car. The waitress told my I had to either dump it out or put it back in the car. I told her I was ordering coffee and milk for myself and that the Perrier was not in lieu of any drink I planned to order from them. She then told me to hide the bottle in my wife's purse. F--k them.