with both well known and upstart restaurants getting in on the action. Bloomberg's Kaitlin Meehan has more on this story.

The automation wave has arrived, and it's wedded the appetite of your lunchtime favorites.

McDonald's is the latest fast food company to take advantage.

The burger chain has begun testing mobile ordering and payments in select US cities.

It says that all of its 14,000 national restaurants will be equipped to handle mobile preorders later this year.

But still, the creator of the Big Mac is a bit late to the party.

Other fast food chains nation wide have already adopted this kind of technology to help boost sales.

Dominos, for example, is the leader here.

For the past five years, the company's been emphazising all the ways you can order pizza,

with minimal human contact, maximal digital contact.

It's introduced more ordering methods through Facebook, Twitter, complete with emojis and the Apple Watch

And as the company builds up its tech cred, it's seen financial results.

Since the end of 2008, when Dominos was threaten by declining sales and distressed franchisees,

it's share price has increased 60 fold.

The company is now worth $9 billion.

Starbucks. Also an early adapter with mobile order and pay technology.

In the US, mobile ordering now makes up 7 percent of all company-own store transactions.

However, the company may be a victim of it's own success.

Customers who order drinks and food on their phones to pick up in store, are in some cases, seeing longer lines, resulting in lower traffic and sales.

One San Francisco based restaurant chain might offer a glimpse of the fast food future.

"Eatsa" is a highly automated food chain where all of the ordering takes places on iPads or mobile.

You pick up your order on a wall of glass doors cubbies.

There's no need for cashiers or servers, just a few human hands working behind the scenes.

The core premise is maximizing efficiencies, where this may lead is anyone's guess.

But all of the evidence are showing that we're marching towards a fast food world where human intervention is optional.