Fast food chains are usually rejected as a “Generic business”. You can read about that in this clarification:
You really need to demonstrate how important the business is to your community, or some other significance about it, to get one accepted. These are extremely difficult nominations, and very hard to convince that they meet the core criteria of a great place for exercise, exploration, or being social. Not just a place you can be social.
This topic might have some good suggestions for you: Tips for Rural Nominators