There are two ways to freeze soft dinner rolls — after they are baked OR before they are baked.
AFTER they are baked, cool completely. Then transfer to a ziploc baggie and store in the freezer. They should stay good for 1-2 months. To reheat, bake in a 350F oven until soft and warmed through.
BEFORE they are baked, roll into balls and place inside the 9×13″ pan. Cover tightly with saran wrap and transfer to the freezer. When ready to bake, simply remove from the freezer and let stand at room temperature until defrosted and puffy, about 1-2 hours. Bake at 350F for 30-40 minutes, as per usual.