One-Pan Herb-Roasted Turkey Breast with Root Vegetables for Large Holiday Gatherings
This flavorful and tender herb-roasted turkey breast recipe is designed specifically for large holiday gatherings. It combines juicy turkey with a medley of roasted root vegetables, all cooked in one pan for easy preparation and cleanup. Perfect for serving 12 guests, this dish balances festive flavors and practical cooking techniques, including detailed portion sizes, timing, and safety tips.
Ingredients
3 kg bone-in turkey breast (skin on, trimmed of excess fat)
3 tbsp fresh rosemary (finely chopped)
3 tbsp fresh thyme (finely chopped)
8 pieces garlic cloves (minced)
120 ml olive oil (extra virgin)
1.5 kg carrots (peeled and cut into 4 cm chunks)
1 kg parsnips (peeled and cut into 4 cm chunks)
4 medium red onions (peeled and quartered)
2 kg baby potatoes (halved if large)
3 tsp sea salt (divided)
2 tsp freshly ground black pepper (divided)
240 ml chicken broth (low sodium)
Instructions
Preheat your oven to 180°C (350°F). Pat the turkey breasts dry with paper towels to ensure crispy skin.
In a small bowl, combine the chopped rosemary, thyme, minced garlic, 80 ml olive oil, 2 tsp sea salt, and 1 tsp black pepper to create an herb marinade.
Rub the herb marinade evenly over the turkey breasts, making sure to get under the skin where possible for maximum flavor infusion.
Place the turkey breasts in a large roasting pan. Toss the carrots, parsnips, red onions, and baby potatoes in the remaining olive oil, 1 tsp sea salt, and 1 tsp black pepper. Arrange the vegetables around the turkey in the pan.
Pour the chicken broth into the bottom of the roasting pan to keep the vegetables moist and create flavorful pan drippings.
Roast in the preheated oven uncovered for approximately 80-90 minutes, or until the internal temperature of the thickest part of the turkey breast reaches 74°C (165°F) using a food thermometer.
Remove the roasting pan from the oven. Tent the turkey breasts loosely with aluminum foil and let rest for 15 minutes before carving to allow juices to redistribute.
Carve the turkey breasts into 150-180 g (5-6 oz) slices per guest. Serve alongside the roasted root vegetables, spooning some pan juices over the top for added flavor.
Equipment
large roasting pan
oven
meat thermometer
mixing bowls
cutting board
sharp knife
aluminum foil
Tips
I find that rubbing the herb marinade under the skin ensures deeper flavor and a moist turkey breast.
Using a meat thermometer is essential to avoid undercooking or drying out the turkey; always check the thickest part.
Letting the turkey rest after roasting helps the juices redistribute, resulting in tender slices.
You can prepare the herb marinade and chop vegetables a day ahead to save time on the holiday.
If you want to add more flavor, baste the turkey once halfway through cooking with the pan juices.
Substitutions
For a dairy-free option, ensure chicken broth is free of dairy ingredients.
Replace parsnips with sweet potatoes for a sweeter flavor profile.
Use turkey tenderloins instead of bone-in breasts for faster cooking, adjusting time accordingly.
Swap fresh herbs with 1 tbsp dried rosemary and 1 tbsp dried thyme if fresh is unavailable.
Storage Instructions
Store leftover turkey and vegetables in airtight containers in the refrigerator for up to 3 days. Reheat gently in the oven at 160°C (320°F) covered with foil to prevent drying. Leftover turkey can also be frozen for up to 2 months.
Recommended Accompaniments
Advance Preparation and Storage
Essential Technique for This Recipe
Recipe Characteristics
- Combined roasting: This method cooks a 3 kg bone-in turkey breast and 4 cm-chunked root vegetables together in one roasting pan.
- Herb marinade application: The use of rosemary, thyme, and garlic rubbed under the skin enhances flavor throughout the meat.
- Portion size: The recipe provides enough turkey slices weighing 150-180 g per guest to serve 12 people.
- Cooking details: Roasting at 180°C for 80-90 minutes with chicken broth added to the pan keeps vegetables moist and yields pan drippings.
Comparison and Further Cooking Ideas
This recipe differs from those that sear or slow cook turkey separately by roasting the bird and vegetables together at 180°C. Patting dry the turkey breast prevents soggy skin during the 90-minute roast. Uniform vegetable chunks of 4 cm allow even cooking alongside the turkey. Including 240 ml of chicken broth in the pan keeps vegetables moist and generates flavorful drippings, which are less likely in dry roasting or stovetop methods.
- One-Pan Citrus Herb Roasted Pork Tenderloin – Easy Winter Holiday Main — features a similar one-pan roasting approach with meat and vegetables.
- Slow Cooker Creamy White Chicken Chili — a make-ahead protein dish with mild seasoning.
Because this recipe uses raw poultry, a food thermometer is essential to verify the turkey’s internal temperature reaches 74°C (165°F) before carving. The USDA temperature chart provides safe cooking temperatures for various meats.


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