Why can't MCPS use a picture of their own food? MCPS Pays $499 +/- to Use Getty Image of Lunch in North East England for MCPS Lunch announcement.

Below is the MCPS web page announcing the beginning of free summer meals.  

The image clearly shows £ for the prices of the items in the cafeteria.  Clicking on the image shows that the name of the image is schools-meals-getty.  A quick look in Getty Images shows another angle of the same image with the caption:

Having. A Light Snack - stock photo

An aerial view of two high school students with snacks for lunch out their trains in the school cafeteria in the school they go to in the North East of England. On display in the chiller fridge is lots of fruit and healthy options for lunch.

Free Summer Meals Available at Various Locations | Montgomery County Public Schools | Rockville, MD (montgomeryschoolsmd.org)