Cooked ham is a great choice for an oven-roasted dinner. It is a very simple and delicious way to prepare a meal. To start, preheat the oven to 350 degrees Fahrenheit. Place the cooked ham in a roasting pan and cover with foil. Bake the ham for 15 minutes per pound. When finished, let the ham rest for 10 minutes before slicing and serving. Enjoy your delicious oven-roasted cooked ham!