I eat at Papis often-used to go every Monday pre-covid- I always order tostadas and haven't had an issue with feeling sick after. I'm dairy free as well- they have vegan cheese, too!
As much as I love their food, on two occasions I ate at Papi's and had bad reactions afterwards even though I ordered off the gluten free menu and told staff I had Celiac. I don't know their level of training or experience with avoiding cross contamination, but it's clearly not a safe place for me to eat. How this helps you make a decision!
So excited about Papi’s in Hampden! They are newer, so ask all the questions. I found out that the vegan cheese IS NOT gluten free, so although there is a vegan menu, it isn’t as great for dairy free+gluten free. They also have a parking lot which is a bonus.