I tore up my gr for a garden. Now what?

I had a friend use his tractor to plow up an area in my yard so I could start a garden. I want to grow: tomatoes, zucchini, snow peas, carrots, chard, broccoli, corn, potatoes, peppers, onions, garlic, and any other herbs I could grow. Are there any other veggies you think I should include that I might have forgotten? The area is about 20x35 feet. So now what do I do? I don't want to put pesticides out there... I want it to be as natural as possible, but I'm not against preventing weeds in a "green" way. I live in the northwest corner of missouri. I need step by step help. The ground is a little lumpy with a lot of dirt. Thanks for the tips...I've never done this before.