Grabbing burgers at the local fast-food restaurant is pretty much a national pastime in the United States.

Some even go the extra mile, serving pure Angus beef or chuck beef.

A few never freeze their meat, either.

MOOYAH cheeseburger and fries

Photo: Mooyah Burger

Read on to discover the best spots to get an all-beef, fast-food burger.

That pure beef is formed into patties and flash frozen.

Flash freezing uses extremely low temperatures to quickly freeze meat, keeping the freshness and flavor intact.

McDonald’s Big Mac and fries on a table

Photo: Patcharaporn Puttipon4289 / Shutterstock

Another good piece of news?

Well, besides the pickles (those contain artificial preservatives).

“We only use fresh ground beef,” the company states onits website.

Whopper Jr. sandwich on top of its wrapper

Photo: Shutterstock

The company further added, “Our manufacturers do not use ammoniated procedures.”

One of the reasons?

The quality of the beef.

wendy’s dave’s single

Shutterstock

“Our team of Associates removes the bones, grinds the meat, and then makes each patty.”

Today, Sonic currently has over 3,500 locations in the United States.

five guys burger being assembled

Photo: Courtesy of Five Guys

Double ButterBurger with cheese at Culver’s

Photo: Culver’s/Facebook

in n out cheeseburger on a red tray.

Photo: Caitlin White, Eat This, Not That!

Shake Shack burgers and fries

Photo: Shutterstock

Bacon and cheese burger at Whataburger

Photo: Whataburger/Facebook

fatburger xxxl burger, fries, and milkshake

Fatburger / Facebook

SuperSonic Bacon Double Cheeseburger from Sonic Drive-In

Photo: Sonic Drive-In/Facebook

Habit Burger BBQ Bacon Char

The Habit Burger Grill / Facebook

MOOYAH cheeseburger and fries

Photo: Mooyah Burger