Preheat the oven to 450 degrees F/232 degrees C.
Remove the turkey breast from the fridge 30 minutes or an hour prior you are ready to roast it.
Meanwhile, make the herbed butter by mixing together butter, rosemary, thyme, sage, garlic, lemon zest, salt and pepper in a bowl until well combined.
Pat dry the turkey breast with paper towels on all sides.
Using your fingers, gently separate the top skin from the meat, being careful not to tear the skin.
Place three tablespoons of the softened herb butter underneath the skin on both sides.
Spread the remaining herb butter on the top and sides of the turkey skin.
Place one half of the lemon in the neck cavity rounded side up and secure the turkey skin with a toothpick*.
Spread onions, carrots, celery, and garlic in an even layer in a large roasting pan or a casserole dish. Pour in the wine (or chicken stock.)
Place the turkey breast on top of the vegetables. You may have to arrange the vegetables to “prop” the breast to stay upright.
If using a temperature probe, place it in the thickest part of the breast, being careful not to touch the bone. If you hit the bone, pull back by approximately ½ inch. Set it to alarm at 155 F/ 68 C. (see notes if you do not have a thermometer probe).
Place in the oven and immediately reduce the heat to 325 F/ 163 C.
Roast for 1 ½ -2 hours or until the internal temperature reaches 155 F/ 68 C.
Remove the turkey breast from the oven, place it on a cutting board, and lightly tent with foil. Do not remove the temperature probe if using it. Let it rest for 30 minutes. As it sits, it should reach 165 F/74 C with the help of the residual heat.