This was very good, although I drastically altered the method of cooking. I used water instead of stock, and cooked this in a saucepan (for about 15 minutes), not in a pressure cooker. I cooked the rice covered, but left a substantial gap to let the steam escape. Because of this the end result wasn't 'soupy', but more 'pilaf-ey, which is exactly how I wanted it! :-) Next time I'll use more oregano, and perhaps even a dash of paprika!
We loved this and I will make it again soon! I sauteed the onion and garlic in a saucepan first, then added to rice cooker with rice and stock and spices. I also used Harvest rice blend from Costco (brown, wild and red mix) instead of the arborio, and used half green olives with pimento and half kalamata olives. Served on a bed of wilted spinach with a little parmesan. Delicious!