In an ovenproof skillet, cook the beef and onion in the oil, breaking the meat up with a wooden spoon, until golden. Season with salt and pepper. (Transfer the meat mixture into an 11 x 8-inch (28 x 20 cm) baking dish, if desired.) Spread 1 ½ cups (225 g) of the corn kernels and all of the creamed corn over the meat.