Cooked green beans can be frozen. For the best results, only minimally cook the beans before freezing. There is a process to keep them fresh.
The first step in preparing the green beans is to trim the ends off of the beans. The green beans can be cut or frozen whole. If left frozen, they can be cut before use in the future. Next, blanch the green beans, and boil them in small batches for two minutes. Then, remove the boiled beans and place them in ice water. Drain the beans, and put them in freezer bags or containers. Mark the bags with the date and amount. Eat the beans within 8 to 10 months of freezing.