Prepare the ingredients required from the list in the required quantity. Rinse the green beans with running cold water, peel the garlic, rinse the lemon with water and remove the zest.
Place the washed green beans in a pan of boiling salted water and cook over moderate heat for 2-3 minutes. To preserve the bright color of the beans, transfer them to ice water after boiling.
Place butter in a saucepan and pour in olive oil, add finely chopped garlic and chili pepper, fry the ingredients for one minute until a characteristic aroma appears. After the time has passed, add the boiled green beans to the saucepan and continue to fry the mixture for about 5 minutes. At the very end, sprinkle the dish with lemon zest and season with salt and pepper to taste.
Serve warm green beans with a pleasant citrusy hint of lemon, garnished with chopped fresh herbs and toasted sesame seeds.