Toms Burger is probably Markhams best kept secret. Right on Highway 7, you've probably passed by heading to Main St Markham. It's a small little restaurant that has their own parking spot.
Their greek food is absolutely amazing. You will forget about the food court greek food after you've been here. Their souvlaki with potatoes and rice are absolutely amazing - their potatoes are marinated in some tomato base and really adds to the flavour. It's also a huge portion - two people can easily finish one plate.
The burgers are freshly made. I will agree with the rest of the comments, it is made well-done so there is some charring in the meat. That being said, their burgers are a thousand times better than the chain.
The two men who work there can be grumpy sometimes - I will admit. Just a little rough around the edges but genuine people. It's just the two of them - they make great food and yes, they work long hours.
Toms Burger is my go to place for burgers and greek food in Markham.