Newly-engaged Meghan previously hailed the Home And Away beauty as 'impressive' and 'entertaining' in a heartfelt post, revealing the two are clearly close friends.
Meghan captioned the inspirational image, 'When @piamiller sends you some #foodforthought. Brilliant one, my friend - thanks for sharing. You are both entertaining and impressive. Xx'
Pia responded to the post by simply commenting, 'Word', alongside a heart emoji.
The Logie award-nominee, who recently travelled to Meghan's hometown of Los Angeles, previously collaborated with the Suits actress on The Tig, a former lifestyle website founded by Meghan.
Pia has also shared her own engagement news this month, announcing her engagement to boyfriend Tyson Mullane.