Preheat oven to 350 degrees Fahrenheit.
Peel and dice up the potatoes then put in a pot and add water. Boil until soft.
Drain and mash the potatoes with butter and put aside.
Make the box of Stove Top as directed.
In a large bowl, mix the diced onions and bread crumbs together.
Add the mashed potatoes and the prepared box of Stove Top.
Sprinkle in summer savory as desired.
Stir until it is mixed well.
Put into a casserole dish.
Spread butter on top and then cover with aluminum foil.
Cook for an hour.
Take aluminum foil off and let brown, about 10 minutes.
Remove and serve!