Charley, surely what you did was buy a stirfry that was made up entirely of vegetables and vegetable based products. Not a meal made for and only to be eaten by vegans, because it contained somthing that other people woudln't eat.
I get very irritated the way if a dish just happens not to contain anything but vegetable based foods, it is described as 'vegan'. It may be suitable for vegans, but cannot be solely vegan. There is nothing unusual about such dishes or meals, they have always formed part of most people's eating patterns.
Yesterday evening, I wasn't feeling very hungry, so my evening meal consisted of a mix of salad vegetables with a French dressing and some fruit. This morning I ate much the same with a glass of fruit juice and a cup of coffee.
Consuming neither of these meals makes me or my choice of foods vegan.
I then had chicken soup and a cheese roll for lunch.