1: Heat olive oil in a large pan over medium heat.
2: Add sliced onions and sauté until translucent.
3: Stir in the minced garlic and cook until fragrant.
4: Add green beans and sauté for a few minutes.
5: Mix in chopped cilantro and parsley.
6: Add harissa, chopped tomatoes, salt, and pepper.
7: Cook until green beans are tender and tomatoes have broken down.
