Lol...dig hole...insert seed...cover seed...water...watch.
 
I'm not being sarcastic. It really is just that easy. Nature takes care of about 95 percent of the work for you. All you need to do it decide where that seed goes and provide a little TLC. And the great thing is you can garden about anywhere!  From acre-sized plots full of corn and 'taters to pots on the porch with herbs and cherry tomatoes.
 
One piece of advice. Plants need room. Roots just don't go down, they grow out to in order to get plenty of water. So space them properly. Most seed packets have general spacing requirments on the back of the package.