People waiting up to 3 hours to try the CosMc's restaurant—and the Snack Wrap is coming back

(Credit: Kamil Krzacyynski—AFP/Getty Images)

McDonald’s is leaning into the new and harkening back to its past to lure in customers—and the chain seems to be having tremendous success in both approaches.

CosMc’s, the fast-food chain’s newest restaurant, opened its first location this weekend and saw customers lined up for hours to taste its new offerings.