Boil up just under 1⁄2 l of salted water. Preheat oven (electric cooker: 200 °C/circulating air: 175 °C/gas: see manufacturer). Cook rice in salt water according to package instructions.
Heat the oil in a pan. Fry 2 steaks on each side for about 1 minute. Season with salt and pepper and place in an ovenproof dish. Spread tomatoes and tortilla chips on top. Sprinkle with cheese.
Bake the steaks in a hot oven for about 8 minutes until the cheese has melted. Drain the pepperoni and cut into rings. Mix the pepperoni with the rice. Arrange steaks and pepperoni rice.