For years, dating back to the 2022 inflation wave, McDonald's and its fast-food rivals have contended with shopper frustration over rising menu prices, with combo meals increasingly breaking into double digits. Customers at the higher end of the income spectrum continue to order premium products and use delivery apps at healthy rates. Lower-income diners, however, are cutting back, Kempczinski argued in an interview on CNBC's "Squawk Box," treating fast food less as a daily convenience and more as an occasional splurge.