Onion & tomato is one stage on the way to creating a kebab mix. It is made by using a knife with an onion, then a tomato. After this, the two ingredients are put into a bowl. Players can then add cooked ugthanki meat to make a kebab mix, and add that to a pitta bread to make an ugthanki kebab. A bowl of onion & tomato heals 200 life points.
A tomato can be found in Aggie's house. Many players take these tomatoes and even cheese found on the next shelf for making a pizza in free play worlds. Onions can be found in many farm patches around RuneScape, while bowls can easily be purchased at a general store.