La Cubana on Ossington is a nice spot to grab a Cuban style meal. There's a relaxed, diner appeal to this place that feels welcoming. You can also grab a beer with your order which is great.
Must-try items:
Chicken Medianoche
Tostones
I haven't been to Cuba yet, so I can't say whether it's authentic or not. But I imagine it's not too far off. Either way, it's not too pricey and the food is great for my tastes.