Judging by the size of thumb and depth of bowl, that is easily just one can of food.
Maybe a 5 or 5.5oz can, but a lot of cat food comes in 3oz cans too. Some have you add water which can add to the bulk of food.
So with perspective and me trying to remember my misguided private sector years in pet food retail… that may not be an immense amount of food for a cat, especially a younger more active cat.