Wash the tomatoes thoroughly and cut them into bite-sized pieces.
Julienne the onion and bell pepper.
Heat a pan with olive oil and sauté the onion and bell pepper.
Add the tomatoes and stir-fry over medium heat.
Season with salt and pepper.
Add ketchup and sugar, then mix well and simmer until thickened.
Serve the finished Tomato Paksi in a bowl.