Grubhub and Seamless will deliver Shake Shack across the US
8:02am PDT - August 5th, 2019 cnbc - EngadgetSometime soon, you won't necessarily need to wait until the buzzer in your hand goes off to know when your food is ready at Shake Shack. The popular burger chain is teaming up with Grubhub for nationwide delivery across the US. Shake Shack seems to be caving …