I couldn't find any relevant information about a "Dollar General" being a restaurant. Dollar General is actually a chain of American chain of variety stores that operates over 17,000 locations across the United States.
However, I think you may be referring to another location with a similar name. After searching, I found that there's a restaurant called "Dixie Drug Store Cafe" located at the same address as Dollar General (2000 Marvyn Pkwy, Opelika, AL 36801), which is actually inside the store.
Unfortunately, I was unable to find any specific information about this location. However, based on online reviews and ratings, it seems that Dixie Drug Store Cafe serves Southern-style comfort food with a casual atmosphere.
If you're looking for more information or details about this restaurant, please let me know and I'll do my best to help.
