Dice sausage, onion and tomato.

Heat a skillet and saute onion until translucent. Add in the diced tomato and saute until soft.

Empty the diced sausage in to the skillet. Add salt, and chilli flakes. Saute for 5 minutes. Mix in the oregano.

Spread half of the above stuffing between two slices of bread and place in a sandwich toaster until the bread is slightly crisp

Serve warm with ketchup.