Old country market in Stouffville. We like to come here a few times a month in the summer to walk around, grab a few snacks, and locally grown groceries from farmers. We gotta support local businesses guys.
There's a food court indoor with quite a few options for food (breakfast items, burgers, sausages, and Asian good). The meat vendor has very good meat (steaks, chickens) which are great on the BBQ.
Outdoor, there are local farmers selling groceries. In the early morning on weekend, I believe there are vendor selling livestock (chicken and ducks) but we don't usually make it there early enough to see the livestock.
There are a few food trucks selling french fires and hot dog/sausages. The last time I was there, there was a vendor selling deep fried Mars bars.
On weekend, there are also random people or vendors selling all kind of second hand stuff. My hubby got affordable yard tools from here.