Answer: I know what a shock it is to move from limitless garden space to a small plot! Fortunately, there are lots of others like you who have pioneered in high-yield, small-space gardening - even for crops like corn and potatoes. Often they concentrate on growing vertically - putting trellises, teepees, a-frames, etc. in the garden for vining crops (cukes, tomatoes, beans & peas). Another tactic is growing successive crops of quick-maturing vegetables like carrots, beets, lettuce, carrots, etc. For instance, once the first round of salad greens is harvested, you can pop in the storage variety of carrots, etc. Two books you can check out on the topic are "How to Grow More Vegetables in Less Space Than You Can Imagine" by John Jeavons (available through http://www.amazon.com) and Mel Bartholomew's "Square-Foot Gardening" (available through http://ecohome.org/books.htm). Hope this gets you started!
Q&A Library Searching Tips