Any suggestions for cooking a 3 pound Pork Sirloin Roast?!

Any suggestions for cooking a 3 pound Pork Sirloin Roast?

I want to do it in the oven.. Just wondering if anyone has ideas for marinades, glazes etc. (and how long to bake it at what temp??? ) I rarely prepare pork because I worry about undercooking.

Thanks in advance!

I found this recipe online a year ago. I and everyone that I have given it to have raved about it. And it's ultra simple. Unfortunately, I don't know who to credit for the recipe.

Pineapple Cranberry Pork Roast

3 lb boneless pork loin roast
2 teaspoons seasoned salt
1 teaspoon ground black pepper
1 (20 oz) can pineapple chunks, undrained
1 (8 oz) bag of dried cranberries

Rub the pork roast on all sides with salt and pepper, and place in a slow cooker.
Pour in the pineapple chunks with juice and sprinkle in the cranberries.
Cover and cook 7 hours on Low.
Be sure to let the meat rest before slicing.

I like to serve this with rice.