But before she became a British Duchess, actress Meg lived a very different existence.
Seriously - before meeting Harry it seems Meghan knew next to nothing about England!
WATCH this video to learn just how little the Queen's future granddaughter-in-law knew about her adopted nation:
Yet the greatest change to the newly minted Duchess' daily routine seems to be her diet, as a recently unearthed interview from 2017 reveals.
In a chat with Women's Health, the former Suits star confessed her weakness for junk food including boxed mac and cheese, french fries and tater tots, The New York Post reports.
"I love a french fry, there's no shame in that," she declared at the time.
"But you know what I do really happen to lovvvve [sic] is that boxed macaroni and cheese."
Meghan, who is known for her preference for holistic living and natural products, admitted she usually buys the Annie's organic mac and cheese as her guilty food pleasure, adding "some frozen peas into it" to create a "gooey, simple childlike meal".
The revelation is a far cry from Meghan's trademark health conscious recipes made famous on her now-defunct lifestyle blog, The Tig.
But Meghan is widely credited for Prince Harry's notable weight loss, which took place after she encouraged the Duke to adopt a vegan lifestyle and cut off drink, News.com.au reports.
Last September, the well known foodie launched a charity cookbook to raise money for the victims of London's Grenfell Tower fire.