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These chain restaurants are getting the best buzz

An employee delivers food at a Sonic drive-in restaurant in Normal, Illinois.

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Restaurants with positive buzz

It's not an easy task to satisfy customers and get good reviews, but these restaurants did just that throughout 2015.

YouGov BrandIndex, a consumer perception research firm, is out with 2015's results for the top-rated casual-dining restaurants and fast food chains in the U.S. receiving the best buzz from customers. BrandIndex interviewed thousands of people and asked whether respondents had heard positive or negative things about the brands in the last two weeks.

"We are asking the consumer to think very broadly about the messaging they are hearing about the brands in our survey," said Ted Marzilli, CEO of YouGov BrandIndex. "In this case, we think that brand perception is just as important as the reality of what is in the consumer's head, whether he or she chooses to eat at a certain restaurant."

So, which restaurants earned top scores? Click ahead to find out.

—By CNBC's Krysia Lenzo
Posted 14 Jan. 2016

Daniel Acker | Bloomberg | Getty Images