Five Guys has been a popular smashburger chain for years. And though it may not be as beloved as their famous burgers and fries, it has also had a grilled cheese sandwich on the menu for years.

I tried grilled cheese sandwiches from Sonic, Shake Shack, and Five Guys. I thought the grilled cheese from Five Guys was overpriced. Sonic's grilled cheese sandwich was my favorite for overall value.

Five Guys — the Washington, D.C.–born burger chain — is no exception. From grilled cheese customizations and hot dog variations, here are the Five Guys menu hacks that you need to know about.

“The Grilled Cheese Cheeseburger features a quarter pound of fresh, never frozen Canadian beef topped with caramelized onions, creamy mayo, and a melty cheese slice made with Canadian dairy, all ...

So, unsurprisingly, Five Guys’ patty melt has been a popular menu hack for years. To obtain it, you had to order a grilled cheese and then, “add a patty.” But now, it might even the best ...

Five Guys also features all-beef hot dogs, and sandwiches ranging from all-veggie to BLTs and grilled cheese. Two styles of fries ― original and Cajun seasoning ― are offered. Milkshakes ...

So, I went to Sonic, Shake Shack, and Five Guys to see how their grilled cheese sandwiches stacked up against each other. Here's how it went. Prices may vary by location.