We keep a pork loin in the freezer all the time. I cut them in half and that feeds my family for the evening.
One Pork Tenderloin
1/2 tsp salt
1/2 tsp garlic powder
1/4 tsp black pepper
Extra Virgin Olive Oil
Put tenderloin in a baking dish. Sprinkle extra virgin olive oil on the top (about a TBS). Sprinkle salt, garlic, and black pepper on top. Bake in 350 degree oven until thermometer reads 155 degrees. Take from oven and let sit for about 5-7 minutes, then carve.
You can also put teriaki sauce on the top instead of the above. You can put Italian salad dressing on it too. (not with the teriaki sauce!)