The launch of steak last year proved so popular that it created tough growth comparisons, but the macro environment is also getting tougher.

CAVA Group's same-restaurant sales came in well short of estimates as diners pulled back on spending. The Mediterranean-themed fast-casual chain also missed revenue forecasts and slashed its same-restaurant sales growth outlook.

While second quarter revenue rose 20%, the fast-casual restaurant operator is navigating a “fluid macroeconomic environment.”