Despite the proliferation of fast-food restaurants and burger joints, there is still room for growth for those with the right game plan, Sonic CEO Cliff Hudson told CNBC on Monday.
In other words, the nation hasn't hit peak burger yet.
"If you do have real ice cream shakes and nice beef on your hamburgers, and so on, if the product has a fresher element … there is still space to move with customers that are looking for that," Hudson said in an interview with "Squawk on the Street."
It's also about having the right menu mix, he added, noting that hamburgers are only 17 percent of Sonic's sales. Drinks account for 30 percent, ice cream is 10 percent and chicken is now pushing 10 percent of its sales.
"We're getting good diversification on our menu and diversification across day parts," he said.
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The nation's largest chain of drive-in restaurants on Monday announced its first ever double-digit quarterly sales gains as a public company. System-wide same store sales increased approximately 11.5 percent for its second fiscal quarter, which ended Feb. 28.