Place the butter, onions and garlic in the bottom of a large stock pot on the stove and let saute for 20 minutes till onions are caramilzed, a light brown. *This process can be sped up by adding water after the onions start to turn brown and the bottom of the pot starts to caramelize. I use 1/2 cup of water and cook it all off.
Add potatoes to caramelized onions. Stir to incorporate onions through the potatoes.
Stir in the green beans and the smoked sausage.
Season with salt and pepper to your taste preference.
Cook for 30-40 minutes over a medium heat or till potatoes are fork tender.