Heat the butter and oil in a pot, add the onion and fry until translucent. Add garlic and fry for a few seconds.
Add all the spices and fry for 1 minute. Add the rice, canned Rhodes Quality Tomato and Onion Gravy, stock, and stir together. Bring to a boil, then reduce heat to a simmer and cover with a lid. Cook the rice for 10 minutes. Add the mixed vegetables and cook for a further 2 minutes.