Preheat oven to 350 degrees F (175 degrees C).
In a pot with enough water to cover, boil the potatoes for about 10minutes. Drain, cool, and place in a bowl. Toss with olive oil, 1/2 teaspoon thyme, 1/2 teaspoon garlic powder, chives, salt, and pepper.
Rub the pork loin roast with 1 teaspoon thyme, 1 teaspoon garlic powder, and onion powder. Sprinkle with salt and pepper.
Place the roast on a rack in a shallow roasting pan, and cook 50 minutes in the preheated oven. Remove from the oven and cool. Place in an oven-ready, freezer safe container. Arrange potatoes around the roast.
To Freeze: Freeze in oven-ready, freezer safe container.
To Reheat: Defrost. Bake at 350 degrees for 50 minutes or until roast is cooked through. Remove from heat, cover with foil and let sit 15 minutes before slicing.