Garden: Total Failure

Well, almost a total failure. My garden this year did an excellent job of supplying us with enough basil to kill a village.

However, this is the rest of my harvest:

That's right kids, two frickin-frackin zucchinis.

That's it.

I watered, it had plenty of sun, not a single eggplant or cubanelle pepper even showed signs of life.

Any tips gardeners?? Because I'm beyond frustrated with the wasted money and lack of fresh produce. Of course that just means that next year I'm going to have to plant two gardens. Grrrrr.