Gather the ingredients.

Halve green beans if they are large; place in a slow cooker with water to barely cover. Add ham hocks and onion. Cover and cook on High until simmering. Reduce heat to Low; cook until beans are crisp but not done, 2 to 3 hours.

Remove ham hocks from the slow cooker. Add potatoes to the slow cooker; cook on Low for 45 minutes.

Meanwhile, remove ham meat from the bones, then chop or shred meat and return to the slow cooker. Season with bouillon, garlic powder, onion powder, seasoning salt, and pepper.

Use a slotted spoon to transfer green beans, potatoes, and ham into a serving dish with a bit of broth.