Order your meals directly from a Google search result
Currently, there are six delivery services in the U.S. that you will be able to choose from. Those six are Seamless, Grubhub, Eat24, Delivery.com, BeyondMenu and MyPizza.com. Google says that it will be adding more delivery firms in the future. That is important because with more delivery firms, the feature will cover more restaurants in the U.S. giving you more of a choice from where to order from.
source: +Google via AndroidGuys