Smashburger is opening 40 restaurants in 2021 with food lockers and open kitchens. Take a look inside.

Smashburger plans to open more than 40 new restaurants in 2021. This includes more drive thru, collection, and delivery options — like food lockers. Smashburger’s president also discussed why its shunning ghost kitchen in favor of prime real estate. Visit the Business section of Insider for more stories. Fast-casual chain…