Chick-fil-A is America's favorite restaurant, according to one survey — and though the chain's famed fried chicken sandwich may keep people coming back for more, these four little-known perks probably don't hurt:

1. "Mom's Valet": Parents with children can place their orders at the drive-thru, and then come inside where a table and their food will be waiting for them.

2. Mobile ordering: Using the restaurant's mobile app, customers can order before arriving at the restaurant. The preferred pick-up method (walk inside or car delivery) can also be selected through the app. Payment is made using a credit card, debit card or the Chick-fil-A mobile app. Food is only prepared once customers "check in," ensuring food is as fresh as it is when ordering in the restaurant.

3. Mobile payments: Through the Chick-fil-A mobile app (iOS, Android), customers can register for a payment account and load it with funds. The app's QR code is then scanned inside the restaurant or at the drive-thru. The cost of the order is automatically deducted from the payment account.

4. Secret menu: According to #HackTheMenu, there are a number of unlisted items to be had, including blueberry cheesecake milkshakes, chicken quesadillas and root beer floats.

Restaurant participation in these services varies. Contact specific locations to confirm offerings.