Rinse the bulgur wheat and drain well. Place it in a bowl and pour boiling water over it. Cover the bowl and let it sit for about 30 minutes until the bulgur is tender and has absorbed all the water.
While the bulgur is soaking, chop the parsley, mint, tomatoes, and green onions and add them to a large mixing bowl.
Once the bulgur is ready, drain any excess water and add it to the mixing bowl with the herbs and vegetables.
Drizzle the olive oil and lemon juice over the tabouli and toss gently to combine.
Season the tabouli with salt and pepper to taste, and mix well.
Cover the tabouli and refrigerate for at least 1 hour to allow the flavours to blend.
Before serving, give the tabouli a quick stir and adjust the seasoning if necessary.