Remove the turkey breast from the fridge and let it sit at room temperature for 30 to 60 minutes.
Preheat oven to 350°F.
Tie the turkey breast (if it's not tied or in a net already). If it is already in a net, leave it in the net to cook. Dab the outside dry with a paper towel.
Brush the turkey breast with olive oil. Generously sprinkle with herbs, salt, & pepper.
Place the turkey breast in a small casserole dish and nestle onions (and extra herbs if desired) alongside the turkey.
Roast the turkey breast uncovered for 30 minutes. Add enough broth to cover the bottom of the dish, about 1 cup.
Continue roasting for 30 to 60 minutes or until the temperature in the thickest part of the breast reaches 165°F. Estimated cook times are listed below.
Remove from oven and let rest for 10 to 15 minutes before slicing.
