A user on Reddit.com asked fast food workers what SECRET or UNDERRATED menu items people never order, but should.  And a lot of these sound FANTASTIC.  

Try ordering an Onion Ring and French Fry Omelet at IHOP.

At Taco Bell, get a Cheesy Gordita Crunch, but ask them to make it with the Doritos Locos Taco shell inside.

Little Caesars sells Italian cheese bread with a garlic cream cheese dipping sauce.

Both Wendy's and Arby's will sell you a cup of melted cheese to dip your fries in.

At McDonald's breakfast, order a Southern Style chicken sandwich, but instead of a bun, have it on McGriddles pancakes.

For McDonald's dessert, try getting one of their Cinnamon Melts with ice cream on top.

Subway workers recommend getting bacon on your tuna sub.

At Starbucks, if you want a drink that tastes like Oreo, get a White Mocha Frappuccino with java chips and a scoop of vanilla bean.  

(Reddit)