Chicken Leek and Butternut Squash Bake – The Ultimate One-Pan Dinner is a delightful dish that combines tender chicken breast, sweet butternut squash, and aromatic leeks in a creamy sauce. Ideal for family dinners or meal prep, this cozy bake brings warmth and satisfaction to any table. Its unique blend of flavors makes it a standout choice for various occasions, ensuring everyone leaves satisfied.
Why You’ll Love This Recipe
- Easy Preparation: This one-pan dinner simplifies cooking and cleanup, making it perfect for busy weeknights.
- Rich Flavor: The combination of creamy sauce with roasted butternut squash and tender chicken creates a deliciously comforting dish.
- Nutrient-Dense: Packed with protein and vegetables, this bake offers a nutritious option for health-conscious eaters.
- Versatile Dish: You can easily adapt this recipe by adding your favorite seasonal vegetables or spices.
- Make-Ahead Friendly: Prepare in advance and reheat for a quick, satisfying meal throughout the week.
Tools and Preparation
To create the Chicken Leek and Butternut Squash Bake, you’ll need some essential kitchen tools to streamline your cooking process.
Essential Tools and Equipment
- Large skillet
- Baking dish
- Cutting board
- Chef’s knife
- Measuring cups
Importance of Each Tool
- Large skillet: Perfect for sautéing ingredients evenly while allowing enough space for all components.
- Baking dish: Ensures even cooking and provides an appealing serving vessel straight from the oven.
- Chef’s knife: A sharp knife makes chopping vegetables effortless and safe.
- Measuring cups: Accurate measurements guarantee consistent results every time you make this dish.

Ingredients
Gather these fresh ingredients to create your Chicken Leek and Butternut Squash Bake:
For the Dish
- 1 tbsp olive oil
- 1 lb chicken breast, diced
- 2 cups butternut squash, peeled and cubed
- 2 large leeks, cleaned and sliced
- 2 cloves garlic, minced
- 1 tsp thyme, fresh or dried
- Salt and pepper, to taste
For the Sauce
- 1/2 cup chicken broth
- 1/2 cup heavy cream or crème fraîche
- 1/2 cup grated Parmesan cheese
- 1/4 tsp ground nutmeg
Optional Topping
- 1/2 cup breadcrumbs
- Cooking spray or butter for greasing
How to Make Chicken Leek and Butternut Squash Bake – The Ultimate One-Pan Dinner
Step 1: Preheat the Oven
Preheat your oven to 375°F (190°C) and lightly grease a baking dish with cooking spray or butter.
Step 2: Cook the Chicken
- Heat the olive oil in a large skillet over medium heat.
- Add the diced chicken breast, season with salt and pepper, and cook until no longer pink, about 5–7 minutes.
- Once cooked, remove the chicken from the skillet and set aside.
Step 3: Sauté the Leeks
- In the same skillet, add the sliced leeks.
- Sauté for about 5 minutes until they become softened.
- Add minced garlic and thyme; cook for another minute until fragrant.
Step 4: Add Butternut Squash
- Stir in the cubed butternut squash.
- Cook for approximately 5 minutes until it is slightly golden around the edges.
Step 5: Combine Ingredients
- Return the cooked chicken to the skillet.
- Stir in chicken broth, heavy cream (or crème fraîche), nutmeg, and half of the grated Parmesan cheese.
- Simmer everything together for about 2–3 minutes until warmed through.
Step 6: Transfer to Baking Dish
Pour everything into your prepared baking dish. Evenly top with remaining Parmesan cheese and breadcrumbs if using.
Step 7: Bake Until Golden
Place in preheated oven and bake for about 25–30 minutes or until the top is golden brown and bubbly.
Step 8: Serve Warm
Remove from oven, let rest for about 5 minutes before serving to allow flavors to meld together. Enjoy this comforting Chicken Leek and Butternut Squash Bake!
How to Serve Chicken Leek and Butternut Squash Bake – The Ultimate One-Pan Dinner
Serving Chicken Leek and Butternut Squash Bake is easy and delightful. This dish is not only comforting but also visually appealing, making it perfect for family dinners or gatherings. Here are some serving suggestions to enhance your dining experience.
With Fresh Herbs
- Garnish with parsley or chives: Chopped fresh herbs add a pop of color and fresh flavor to the dish.
- Drizzle with olive oil: A light drizzle of high-quality olive oil can elevate the flavors even more.
Accompanied by a Salad
- Mixed greens salad: A simple salad of mixed greens, tomatoes, and cucumbers provides a refreshing contrast.
- Caesar salad: The crispness of romaine lettuce and creamy dressing pairs wonderfully with the bake.
As a Cozy Meal
- Serve in individual ramekins: For a personal touch, portion out servings in ramekins for each guest.
- Pair with crusty bread: Offer slices of warm, crusty bread to soak up the creamy sauce.
How to Perfect Chicken Leek and Butternut Squash Bake – The Ultimate One-Pan Dinner
To ensure your Chicken Leek and Butternut Squash Bake reaches its full potential, consider these helpful tips.
- Use fresh ingredients: Fresh chicken, leeks, and squash enhance the overall flavor of the dish.
- Don’t overcook the chicken: Cook until just no longer pink to keep the meat tender and juicy.
- Adjust seasoning generously: Taste as you go; adding salt and pepper will enhance all the flavors.
- Experiment with cheese: Feel free to mix different types of cheese for added depth, such as cheddar or gouda.
- Let it rest before serving: Allowing it to sit for a few minutes helps flavors meld and makes serving easier.
Best Side Dishes for Chicken Leek and Butternut Squash Bake – The Ultimate One-Pan Dinner
Pairing side dishes with your Chicken Leek and Butternut Squash Bake can create a well-rounded meal. Here are some delicious options to consider:
- Garlic Mashed Potatoes: Creamy mashed potatoes infused with garlic complement the bake beautifully.
- Steamed Green Beans: Crisp-tender green beans add freshness and balance to the richness of the bake.
- Roasted Brussels Sprouts: Caramelized Brussels sprouts bring a nutty flavor that pairs well with chicken.
- Quinoa Salad: A light quinoa salad with cherry tomatoes and cucumbers offers a healthy contrast to the bake.
- Coleslaw: A tangy coleslaw adds crunchiness and bright flavors that refresh the palate.
- Buttered Corn on the Cob: Sweet corn serves as a delightful side that enhances any comforting meal.
Common Mistakes to Avoid
When making Chicken Leek and Butternut Squash Bake, it’s easy to overlook certain details. Here are some common mistakes and how to avoid them.
- Bold seasoning: Not seasoning the chicken properly can lead to bland flavors. Always season your chicken with salt and pepper before cooking for a flavorful base.
- Bold vegetable preparation: Failing to clean the leeks thoroughly can result in grit in your dish. Make sure to slice and rinse them properly under running water.
- Bold timing errors: Overcooking the butternut squash may cause it to become mushy. Cook until just tender so it retains its shape and sweetness.
- Bold layering: Skipping the layer of cheese on top will reduce the richness of the bake. Always add cheese before baking for a deliciously golden crust.
- Bold oven temperature: Cooking at too high a temperature can burn the top while leaving the inside undercooked. Stick to 375°F (190°C) for even cooking.

Storage & Reheating Instructions
Refrigerator Storage
- Item: Store leftovers in an airtight container.
- Item: Can be refrigerated for up to 3 days.
- Item: Allow the dish to cool completely before sealing to maintain freshness.
Freezing Chicken Leek and Butternut Squash Bake – The Ultimate One-Pan Dinner
- Item: This dish freezes well for up to 3 months.
- Item: Use a freezer-safe container or wrap tightly in plastic wrap then foil.
- Item: Label with date for easy identification later.
Reheating Chicken Leek and Butternut Squash Bake – The Ultimate One-Pan Dinner
- Oven: Preheat to 350°F (175°C) and bake covered for about 20 minutes or until heated through.
- Microwave: Heat on medium power in short bursts, stirring in between, until hot throughout.
- Stovetop: Gently reheat in a skillet over low heat, adding a splash of broth if needed to keep it moist.
Frequently Asked Questions
Here are some frequently asked questions about the Chicken Leek and Butternut Squash Bake.
What can I substitute for heavy cream?
You can use crème fraîche or a plant-based cream alternative for a lighter option without compromising flavor.
Can I use different vegetables?
Absolutely! Feel free to mix in other vegetables such as carrots or spinach based on what you have on hand.
How do I make Chicken Leek and Butternut Squash Bake gluten-free?
Substitute breadcrumbs with gluten-free options like crushed rice crackers or omit them altogether.
Can I prepare this dish ahead of time?
Yes, you can assemble it beforehand and store it in the fridge. Just bake it when ready to serve!
Final Thoughts
Chicken Leek and Butternut Squash Bake is a fantastic one-pan meal that combines comfort with nutrition. Its creamy texture and rich flavors make it perfect for family dinners. Don’t hesitate to customize it with your favorite veggies or spices for a personal touch!
Chicken Leek and Butternut Squash Bake
- Total Time: 45 minutes
- Yield: Serves approximately 4 people 1x
Description
Indulge in the comforting flavors of our Chicken Leek and Butternut Squash Bake – The Ultimate One-Pan Dinner. This easy-to-make dish features tender chicken breast, sweet butternut squash, and aromatic leeks enveloped in a creamy sauce, creating a hearty meal that’s perfect for busy weeknights or cozy family dinners. With its nutrient-dense ingredients and delightful combination of flavors, this bake ensures everyone at your table will leave satisfied. Plus, it’s adaptable to fit your favorite seasonal vegetables or spices, making it a versatile addition to your recipe collection.
Ingredients
- 1 tablespoon olive oil
- 1 pound chicken breast, diced
- 2 cups butternut squash, peeled and cubed
- 2 large leeks, cleaned and sliced
- 2 cloves garlic, minced
- 1 teaspoon thyme (fresh or dried)
- Salt and pepper to taste
- 1/2 cup chicken broth
- 1/2 cup heavy cream or crème fraîche
- 1/2 cup grated Parmesan cheese
- 1/4 teaspoon ground nutmeg
Instructions
- Preheat your oven to 375°F (190°C) and lightly grease a baking dish.
- Heat olive oil in a large skillet over medium heat. Add diced chicken, season with salt and pepper, and cook until no longer pink (about 5–7 minutes). Remove from skillet.
- In the same skillet, sauté leeks for about 5 minutes until softened. Add garlic and thyme; cook for another minute.
- Stir in cubed butternut squash and cook until slightly golden (about 5 minutes).
- Return cooked chicken to the skillet. Mix in chicken broth, heavy cream (or crème fraîche), nutmeg, and half of the Parmesan cheese. Simmer for about 2–3 minutes.
- Transfer everything into the prepared baking dish. Top with remaining Parmesan cheese.
- Bake for 25–30 minutes or until golden brown and bubbly.
- Allow to rest for about 5 minutes before serving.
- Prep Time: 15 minutes
- Cook Time: 30 minutes
- Category: Main
- Method: Baking
- Cuisine: American
Nutrition
- Serving Size: 1 serving
- Calories: 370
- Sugar: 6g
- Sodium: 620mg
- Fat: 20g
- Saturated Fat: 9g
- Unsaturated Fat: 10g
- Trans Fat: 0g
- Carbohydrates: 27g
- Fiber: 4g
- Protein: 25g
- Cholesterol: 85mg