Pork tenderloin is a versatile dish that can be paired with a variety of side dishes. Here are some ideas from the search results:

1. Roasted vegetables: Roasted Brussels sprouts, green beans, and fingerling potatoes are all great options.
2. Salads: Crunchy slaws, arugula salad with figs, and cabbage salad are all tasty options.
3. Cornbread: This southern staple is a perfect soul food to pair with pork tenderloin.
4. Applesauce: Homemade applesauce is a delicious and easy recipe that pairs perfectly with pork tenderloin.
5. Baked sweet potatoes: A simple baked sweet potato with some butter, salt, and pepper is an easy side that will add tons of color and flavor to your pork dinner.
6. Beans: Beans are a great side, especially with BBQ pork tenderloin.
7. Mashed potatoes: Creamy mashed potatoes are especially great with pork and gravy.
8. Au gratin potatoes: Homemade au gratin potatoes are a delicious and hearty side dish.
9. Rice: Brown rice is the perfect companion to pork tenderloin.
10. Bacon-wrapped asparagus: Baked bacon-wrapped asparagus is a simple and delicious side dish.

These are just a few ideas, but there are many more options out there. Ultimately, the best side dish for pork tenderloin will depend on personal preference and the flavors of the main dish.