You might as well give me season tickets; I live not too far from this place, so regular stops becomes an easy habit.
The baseball themed microbrewery has become a home run derby of hit suds in Toronto's craft beer scene ever since it secured a location hidden in an old discreet east end railway industrial alley/street-thing. Amazing people, family and dog-friendly atmosphere, and products that reeks of a passion for good go-to beers and experiments--fruity, hoppy, dark--that don't swing into foul territory. Left Field has grown so quickly that it can be hard to keep up with the lineup of new beers. The Sunlight Park saison and Eephus Oatmeal Ale are decent regulars to default to.
The brewery itself is one of a few that has a TV for showing games (not always baseball). Flights and pints are served, but no food--bring your own grub or help yourself to whatever food truck/event setup they host almost every weekend. They do facility tours I think most weekends too.
{TTC: Greenwood bus to Ivy Ave, or 506 to Greenwood and walk a short distance north}