In a pot over medium heat, warm the oil and sauté the onion and garlic until they soften.
Add the tomatoes and bell pepper. Season with salt, cinnamon, and black pepper, then stir the mixture.
Cover the pot and let it cook over low heat for 5 minutes.
Add the bulgur, then cover the ingredients with water.
When the mixture boils, add the tomato paste and stir. Cover the pot, reduce the heat, and let it cook until the bulgur is tender and the liquid is absorbed.
Pour the tomato bulgur into a serving dish and serve immediately.