Sales and traffic at restaurant chains like Cava, Chipotle and Sweetgreen are falling, as customers grow tired of both salad bowls and their rising price tags.
Two years ago, Brittany Graham would pull into her local Chipotle in Chico, Calif., once a month and order her favorite entree, a steak bowl.
But as prices climbed, Ms. Graham, a 36-year-old customer-service manager at a furniture company, cut back o... [1423 chars]