I ordered grilled cheese sandwiches at Sonic, Five Guys, and Shake Shack to see which fast-food chain has the best offering.

Shake Shack ... That grilled flavor on there is fantastic. Alyssa Pagano: Oh, it’s actually spicier than I was expecting. Kate Taylor: This is a very tasty chili cheese dog.

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.

The tester found the Shake Shack grilled cheese — which consists of melted American cheese inside a grilled potato bun — to be "bold, flavorful, and delicious." Further, the bun was perfectly ...

The NYC-born fast food chain is perhaps best known for its selection of juicy hamburgers and luxuriously creamy milkshakes, but real fans know that Shake Shack also makes excellent chicken sandwiches.