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Close-up of a juicy oven-baked chicken breast dinner, golden brown and perfectly cooked.

Ultimate Juicy Oven-Baked Chicken Breast Dinner with Creamy Mash and Roasted Veg

This recipe delivers a complete and satisfying meal featuring incredibly juicy oven-baked chicken breast, paired with rich, creamy mashed potatoes and flavorful roasted garlic green beans, all complemented by a fresh balsamic side salad.
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Prep Time 20 minutes
Cook Time 50 minutes
Total Time 1 hour 10 minutes
Servings 4 people
Calories 550 kcal

Equipment

  • Large bowl
  • Oven-safe skillet
  • Cutting board
  • Large pot
  • Potato masher or electric mixer
  • Baking sheet

Ingredients
  

For the Ultimate Juicy Oven-Baked Chicken Breast:

  • 4 boneless, skinless chicken breasts
  • 1 tablespoon olive oil
  • 1 teaspoon smoked paprika
  • 0.5 teaspoon garlic powder
  • 0.5 teaspoon onion powder
  • 0.25 teaspoon dried thyme
  • Salt and black pepper to taste

For the Quick Brine (Optional, but highly recommended for juiciness):

  • 4 cups warm water
  • 2 tablespoons kosher salt
  • 1 tablespoon sugar

For the Best Creamy Mashed Potatoes:

  • 2 lbs Russet or Yukon Gold potatoes peeled and quartered
  • 0.5 cup warm milk
  • 0.25 cup unsalted butter melted
  • Salt and white pepper to taste

For the Roasted Garlicky Green Beans:

  • 1 lb green beans trimmed
  • 1 tablespoon olive oil
  • 0.5 teaspoon garlic powder
  • Salt and black pepper to taste

For the Fresh Balsamic Side Salad:

  • 4 cups mixed greens
  • 0.5 cup cherry tomatoes halved
  • 0.25 cup cucumber diced
  • 2 tablespoons balsamic vinaigrette or your favorite dressing

Instructions
 

Part 1: The Ultimate Juicy Chicken Breast

  • Dissolve kosher salt and sugar in warm water, then submerge chicken breasts and refrigerate for 30 minutes to 4 hours to brine.
  • Preheat oven to 400°F (200°C) and pat chicken breasts thoroughly dry, especially if brined.
  • Combine olive oil, smoked paprika, garlic powder, onion powder, dried thyme, salt, and pepper; rub this mixture evenly over the chicken breasts.
  • Sear chicken breasts in an oven-safe skillet over medium-high heat for 2-3 minutes per side until golden brown, working in batches if needed.
  • Transfer skillet to the preheated oven and bake for 12-18 minutes until chicken reaches an internal temperature of 165°F (74°C).
  • Remove chicken from the oven, transfer to a cutting board, tent with foil, and let rest for 5-10 minutes.

Part 2: The Best Creamy Mashed Potatoes

  • Place peeled and quartered potatoes in a pot, cover with cold salted water, bring to a boil, then simmer for 15-20 minutes until tender.
  • Drain potatoes, return to the pot, then mash with warm milk, melted butter, salt, and white pepper until smooth and creamy, adjusting seasoning to taste.

Part 3: Roasted Garlicky Green Beans

  • Toss trimmed green beans with olive oil, garlic powder, salt, and pepper on a baking sheet, spreading them in a single layer.
  • Roast green beans in the 400°F (200°C) oven for 10-15 minutes until tender-crisp.

Part 4: Fresh Balsamic Side Salad

  • In a large bowl, combine mixed greens, halved cherry tomatoes, and diced cucumber.
  • Drizzle with balsamic vinaigrette just before serving and toss gently.

Notes

Brining the chicken is highly recommended for an extra juicy result. Adjust seasoning to your preference. For a richer mash, use whole milk or cream. Ensure chicken reaches 165°F (74°C) internal temperature for safety. Allows for a delicious and balanced meal with ample protein and vegetables from start to finish.