lol, I've been growing food-bearing plants in my backyard for about 10 years now. I plant jalapenos, tomatoes, bell peppers, watermelons, squash, zuchini, strawberries, eggplant and cantaloupe. I've grown maybe the equivalent of $100 worth of fruits and vegetables in that time. If I'm lucky I'll get three watermelons in a year. It's interesting to see and fun to do, but there's no way that planting vegetable plants is going to sustain you to any level on a typical lot.