Macaroni and Feta with Pancetta, Spinach, & Sun Dried Tomatoes

red onion, finely diced

pancetta, finely diced

tbls butter, if needed

tbls flour

milk

garlic powder

spinach, roughly chopped

Wisconsin Feta cheese, crumbled

tbls sun dried tomatoes, roughly chopped

Salt and white pepper

cooked large elbow macaroni