Nearly one month after Kate Middleton announced her cancer diagnosis, Prince William has returned to his royal duties.

To kick off the day, the Prince of Wales paid a visit to a food redistribution charity called Surplus to Supper in Sunbury-on-Thames, Surrey, on Thursday. The organization's mission is to bridge the gap between food waste and food poverty across Surrey and West London. 

While there, William put on an apron and got to work preparing meals while mingling with members of the dedicated staff. 

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Prince William mingling with volunteers.

Prince William mingled with volunteers during his visit to the charity, Surplus to Supper. (Getty Images)

The Prince of Wales' visit marks his first royal duty appearance since Kate Middleton's cancer diagnosis announcement.

The Prince of Wales' visit marks his first royal duty appearance since Kate Middleton's cancer diagnosis announcement. (Getty Images)

On the prince and princess's X page, there were photos shared of his visit. 

"A brilliant model for sustainability, fresh food that would otherwise have gone to waste is redistributed for free to support foodbanks, schools, care homes, shelters, clubs and religious organisations across the local community," the post read.

In another post, William mentioned that Surplus to Supper redistributes "25,000 meals a year across Surrey and West London."

During his visit, the prince was greeted with get-well cards for Catherine and King Charles, who also revealed his own cancer diagnosis in February

"Oh some cards, oh, you’re very kind," William is heard telling volunteer Rachel Candappa in a video posted by ITV on X. "Thank you very much, that’s very kind of you." Candappa also told the prince to look after his wife, to which he promised, "I will."

Prince William receives cards for Kate Middleton

Prince William is given cards for his wife Kate Middleton by volunteer Rachel Candappa, right, as Operations Director Claire Hopkins looks on during a visit to Surplus to Supper. (Alastair Grant-WPA Pool/Getty Images)

William is also expected to visit a youth center that regularly receives meals from the organization later today. 

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Prince William carrying a crate of bananas

Prince William helps to make a food delivery from Surplus to Supper. (Ian Vogler - WPA Pool/Getty Images)

Prince Williams' last royal engagement was on March 19 with The Royal Foundation's Homewards program to end homelessness.

Prince Williams' last royal engagement was on March 19 with The Royal Foundation's Homewards program to end homelessness. (Getty Images)

The public outing comes nearly one month after Kate shared her cancer diagnosis on March 22. 

"I wanted to take this opportunity to say thank you, personally, for all the wonderful messages of support and for your understanding whilst I have been recovering from surgery," Kate said in the video recorded and released last month."It has been an incredibly tough couple of months for our entire family, but I’ve had a fantastic medical team who have taken great care of me, for which I am so grateful."

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She explained that after her abdominal surgery in December, it was believed her condition was "non-cancerous." However, further testing showed "cancer had been present." She was advised to begin chemotherapy by her medical team.

"This, of course, came as a huge shock, and William and I have been doing everything we can to process and manage this privately for the sake of our young family," Kate said. "As you can imagine, this has taken time. It has taken me time to recover from major surgery in order to start my treatment. But, most importantly, it has taken us time to explain everything to George, Charlotte and Louis in a way that is appropriate for them, and to reassure them that I am going to be OK."

Kate Middleton in a white top with navy stripes sits on a bench to announce she has cancer

Kate Middleton announced she had cancer in a pre-recorded message shared earlier in March. (The Prince and Princess of Wales Twitter)

"As I have said to them; I am well and getting stronger every day by focusing on the things that will help me heal; in my mind, body and spirits," Kate added. "Having William by my side is a great source of comfort and reassurance too. As is the love, support and kindness that has been shown by so many of you. It means so much to us both."

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The princess will return to official duties when she is cleared to do so by her medical team," a Kensington Palace spokesperson told Fox News Digital at the time. "She is in good spirits and is focused on making a full recovery."

Since the announcement, William has remained by his wife's side, as well as their three children. 

Last week, William and his son, Prince George, attended the Aston Villa soccer game in Birmingham, marking the first public appearance for the prince in nearly a month. 

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Fox News Digital's Lauryn Overhultz contributed to this report.