I'm with you - little land and densely packed. We're allowed chickens but not enough space when i factor in the kids needing to run around.

Last year i got a plot at a community garden, and it was 20x30 feet. I grew a lot of squash, tomatoes and cucumbers, but it was a good start and i learned a lot. I feel like it's a way for me to indulge in the dream at a pretty low-risk way. This next year the goal is to grow things from seeds instead of seedlings.