Perfect for holiday gatherings or a cozy family dinner, this Herb-Roasted Turkey Breast with Garlic Mashed Potatoes combines the flavors of juicy, herb-infused turkey and creamy, savory mashed potatoes. This comforting meal is deliciously simple to prepare, offering all the flavors of a traditional holiday spread without the effort of a full turkey. With garlic, rosemary, and thyme, the turkey breast is beautifully seasoned, and the potatoes add that classic, creamy touch to complete the meal.
This dish combines succulent, herb-roasted turkey with the rich, creamy flavor of garlic mashed potatoes. The turkey’s crispy skin is perfectly seasoned with rosemary, thyme, and sage, while the mashed potatoes are smooth, buttery, and infused with garlic for a savory finish.
This meal is protein-rich, with lean turkey breast as a high-quality source of protein, vitamins B6 and B12, and minerals like zinc and selenium. Garlic mashed potatoes provide fiber, vitamin C, and potassium, making this a satisfying, balanced meal that’s both nourishing and comforting.
Ingredients:
For the Turkey:
- 1 (3–4 lb) turkey breast, bone-in, skin-on
- 3 tablespoons olive oil or melted butter
- 2 cloves garlic, minced
- 1 teaspoon dried rosemary
- 1 teaspoon dried thyme
- 1/2 teaspoon dried sage
- Salt and pepper, to taste
For the Garlic Mashed Potatoes:
- 2 lbs Yukon Gold or russet potatoes, peeled and cubed
- 4 cloves garlic, peeled and halved
- 1/2 cup milk (or heavy cream for a richer flavor)
- 3 tablespoons butter
- Salt and pepper, to taste
- Fresh chives or parsley, chopped (for garnish)
Instructions:
- Prepare the Turkey Breast:
- Preheat the oven to 375°F (190°C).
- In a small bowl, mix olive oil (or melted butter) with minced garlic, rosemary, thyme, sage, salt, and pepper.
- Rub the herb mixture generously over the turkey breast, ensuring it is well-coated.
- Place the turkey breast in a roasting pan and roast for about 1 hour to 1 hour and 15 minutes, or until the internal temperature reaches 165°F (74°C).
- Allow the turkey to rest for 10 minutes before slicing.
- Prepare the Garlic Mashed Potatoes:
- While the turkey roasts, bring a large pot of salted water to a boil. Add potatoes and garlic cloves, then cook until potatoes are fork-tender, about 15–20 minutes.
- Drain the potatoes and garlic, then return them to the pot.
- Add milk and butter to the potatoes, mashing until smooth and creamy. Season with salt and pepper, adjusting to taste.
- Garnish with fresh chives or parsley if desired.
Prep Time, Cook Time, Servings, Calories:
- Turkey Prep Time: 10 minutes
- Mashed Potatoes Prep Time: 5 minutes
- Cook Time (Total): 1 hour 15 minutes
- Servings: 4
- Calories: Approximately 500 calories per serving (includes both turkey and mashed potatoes).
Serving Options: Serve the Herb-Roasted Turkey Breast with Garlic Mashed Potatoes alongside a simple green salad or steamed green beans for added color and nutrients. You could also drizzle some turkey pan drippings over the mashed potatoes for extra flavor. This meal pairs beautifully with a glass of light red or white wine, making it perfect for any festive occasion.
Potential Upgrades and Substitutes: For a twist, add roasted vegetables to the baking pan, such as carrots, Brussels sprouts, or parsnips, for a complete one-pan dinner. You can also substitute rosemary with sage or add a dash of lemon zest to the turkey for a hint of citrus. For the mashed potatoes, try adding a dollop of sour cream or grated Parmesan for extra creaminess and flavor.

Ingredients
- For the Turkey:
- 1 (3–4 lb) turkey breast, bone-in, skin-on
- 3 tablespoons olive oil or melted butter
- 2 cloves garlic, minced
- 1 teaspoon dried rosemary
- 1 teaspoon dried thyme
- 1/2 teaspoon dried sage
- Salt and pepper, to taste
- For the Garlic Mashed Potatoes:
- 2 lbs Yukon Gold or russet potatoes, peeled and cubed
- 4 cloves garlic, peeled and halved
- 1/2 cup milk (or heavy cream for a richer flavor)
- 3 tablespoons butter
- Salt and pepper, to taste
- Fresh chives or parsley, chopped (for garnish)
Instructions
- Prepare the Turkey Breast:
- Preheat the oven to 375°F (190°C).
- In a small bowl, mix olive oil (or melted butter) with minced garlic, rosemary, thyme, sage, salt, and pepper.
- Rub the herb mixture generously over the turkey breast, ensuring it is well-coated.
- Place the turkey breast in a roasting pan and roast for about 1 hour to 1 hour and 15 minutes, or until the internal temperature reaches 165°F (74°C).
- Allow the turkey to rest for 10 minutes before slicing.
- Prepare the Garlic Mashed Potatoes:
- While the turkey roasts, bring a large pot of salted water to a boil. Add potatoes and garlic cloves, then cook until potatoes are fork-tender, about 15–20 minutes.
- Drain the potatoes and garlic, then return them to the pot.
- Add milk and butter to the potatoes, mashing until smooth and creamy. Season with salt and pepper, adjusting to taste.
- Garnish with fresh chives or parsley if desired.