Heat olive oil in a large pot over medium heat and sauté the onion until soft and translucent
Add garlic and green pepper, cooking for 2–3 minutes until fragrant
Stir in chopped tomatoes and tomato paste, and let simmer for another 2–3 minutes to develop rich flavor
Add the coarse bulgur wheat and stir to coat with the tomato mixture
Pour in water or vegetable stock, season with salt and black pepper, and bring to a boil
Reduce heat, cover, and let simmer for 15–20 minutes until the liquid is absorbed
Remove from heat and let the Turkish bulgur wheat pilaf rest (covered) for 10 minutes before fluffing
Fluff with a fork, garnish with parsley and lemon juice if using, and serve hot