Hot pot, no need to refuel, first fry the sausage oil with low fire, then slowly turn to medium heat, until the sausage is fragrant and a little burnt, then put the sausage up for later use.
Stir-fry the green beans with the remaining oil in the pot. Add a little water to soften the beans. The green beans don't ripen so quickly. If they are not cooked, they taste hard and smell like grass, so be patient. Add a little salt and sugar to taste on the way, but the sausage was originally strong, so a little bit will be fine.
Try it. When the beans are ready, just pour the sausage in and fry it together, and you can serve it.