Cut the onion into small pieces, cook in a saucepan with vegetable oil for 2-3 minutes. Add beans and chopped garlic. Cooking for 3-4 minutes.
Add prepared peanut sauce to a saucepan, mix. Add the remaining milk if desired. Cook the green beans in the peanut sauce for another 4-6 minutes.
Sprinkle the finished green beans in peanut sauce with whole nuts and immediately serve them to the table – as an independent dish or as a side dish, for lunch or dinner.