Place the pork roast into the base of the slow cooker and season with salt and pepper.
In a small bowl, toss together the minced onion, minced garlic, dried oregano, dried basil and dried rosemary.
Add the herb mixture directly onto the pork roast, pressing lightly. If your slow cooker tends to run hot and dry out food, add 1/2 to 1 cup of water around the pork roast.
Set the slow cooker on low and cook for 8 hours. Once finished cooking, slice the pork roast. Season with salt and pepper to taste.
Warm the dinner rolls.
Serve Slow Cooker Herb Pork Tenderloin with veggies and dinner rolls.