Rob Clark, who owns Clark's Restaurant on Queen Street, began cooking and donating meals for the hospital at the start of the month and since April 7 has donated 200 meals a week for the staff in the ICU and A&E departments and other Covid-19 affected departments.
Rob said: "Following images on social media of NHS staff working long hours and not getting time/opportunities for hot meals during/after shifts I have been delivering 200 ready meals per week.
"I have been working solo on this to avoid the risk of contamination to other staff at the restaurant."
The meals have been produced in the restaurant's kitchen using fresh ingredients to provide staff on day and night shifts with delicious food and vital nutrition.
Each delivery costs around £200 and donations from the public to fund the meals have now topped £1,500.
During the pandemic the hospital's canteen has been closed to staff as the catering team prioritises providing hot food to patients and to staff unable to leave clinical ward areas.
A spokeswoman for York Teaching Hospital NHS Foundation Trust said: "The team is also providing over 1,000 packed lunches to every member of staff, across all shifts. In addition, they are offering a hot breakfast seven days a week and vending and coffee is available 24 hours a day.
“Staff are welcome to bring in their own food to heat which can be done in dedicated staff areas or in the canteen where there is a microwave.
“The canteen will reopen to both patients and staff for normal service as soon as it is safe to do so.”
Any donations remaining after the COVID-19 will be donated to the medical staff canteen for staff to use.