Roasting meat, in the cooking world, is about as simple as it gets. The greatest roast recipe I've ever found is from Michael Ruhlman's website, with the recipe titled, "The World’s Most Difficult Roasted Chicken Recipe."
Turn your oven on high (450 if you have ventilation, 425 if not). Coat a 3- or 4-pound chicken with coarse kosher salt so that you have an appealing crust of salt (a tablespoon or so). Put the chicken in a pan, stick a lemon or some onion or any fruit or vegetable you have on hand into the cavity. Put the chicken in the oven. Go away for an hour. Watch some TV, play with the kids, read, have a cocktail, have sex. When an hour has passed, take the chicken out of the oven and put it on the stove top or on a trivet for 15 more minutes. Finito.
The real trick with roasts, which is also the only direct instruction in the world's most difficult roast, is getting the temperature right for your giant piece of meat. Don't fret though, there's an app for that.
Time To Roast, by Hemingsby Limited, calculates the cooking time and temperature for your meat from the size and type of the meat. It'll help you cook up the traditional chickens, pigs, and cows, but will also tell you how long to cook ducks, lamb, geese, and turkeys. It has a simple as pie interface, with direct, easy to read instructions, and is sure to guide you to making the best roast of your life.
Just remember to not panic while you're waiting. These things take time and, unlike your kids or significant other, need absolutely no attention.