1. Cook the couscous according to the package instructions.
2. Wash and remove the stems from the parsley and mint, then chop them with a knife or scissors.
Finely chop the onions (yellow or green) and tomatoes into small cubes.
3. To taste: Mix the onion with a little salt, pepper, and a pinch of cinnamon.
4. Wash the romaine lettuce or batavia and set it aside.
5. Put everything in a salad bowl.
Once the couscous is cooked, add it to the other ingredients in the salad bowl.
Only mix it right before serving. Drizzle with lemon juice and olive oil, and add salt.
6. Taste to check the seasoning.
The tabouleh should have a shiny appearance, indicating that there is enough olive oil.
7. Arrange the lettuce leaves on a large platter and pour the tabouleh in the middle. Use the rolled leaves like a cone to eat the tabouleh.