
My family can't get enough of this rich Chicken, Leek and Butternut Squash Bake when comfort food cravings hit. The mix of juicy chicken, sugary butternut squash, and soft leeks comes together in a dish that feels both indulgent and good for you.
I whipped this up during one hectic week when I needed meals that would last. We gobbled it up so fast I had to cook another batch right away. Now it's a staple in our dinner lineup.
Ingredients
- Boneless skinless chicken thighs: they stay moist and bring a deeper flavor than breast meat
- Butternut squash: gives the dish a natural sweetness and turns soft and creamy in the oven
- Leeks: melt down to add a gentle onion taste that's super smooth
- Dried herbs: thyme and parsley add wonderful scent and taste
- Paprika: brings a touch of smoky flavor and gorgeous red tint
- Parmesan cheese: forms that drool-worthy crisp top layer with salty punch
- Chicken stock: keeps everything juicy while adding flavor depth
- Butter: used for cooking veggies and bringing richness
- Fresh parsley: finishes the dish with a pop of color and fresh taste
Step-by-Step Instructions
- Prepare the Chicken:
- Slice the thighs into thirds so they cook faster and mix better with other ingredients. Add dried herbs, salt and pepper, then brown them in a hot pan until golden. You're just getting color here, not cooking them fully since they'll finish in the oven.
- Sauté the Vegetables:
- Drop butter into the chicken pan to grab all those tasty bits. Toss in onions, butternut squash and paprika, cooking until squash starts getting tender. Splash in some chicken stock to loosen the yummy stuck-on parts. This makes your flavor base amazing.
- Incorporate the Leeks:
- Add your sliced leeks and garlic to the veggie mix, cooking for 5 to 8 minutes. You want leeks that turn soft with light browning while the squash gets tender. Taking it slow lets all the flavors mix together.
- Assemble and Bake:
- Dump the veggie mixture into an oven-safe dish and spread it flat. Place your browned chicken on top with any juices from the pan. Pour the rest of your stock over everything and sprinkle lots of Parmesan on top. This setup makes sure everything cooks just right.
- Final Baking:
- Cover with foil and bake for 15 minutes so the chicken cooks through, then take the foil off and bake 15 minutes more until it turns golden and bubbly. Throw on fresh parsley at the end with a bit more salt and pepper if needed.

The butternut squash really makes this dish special for me. When it roasts, it gets super sweet and turns into these soft little pockets throughout the casserole. I once made this for a buddy who swore she hated butternut squash. She ended up asking for more! The way it soaks up all the chicken flavor totally changed her mind.
Make Ahead Options
This dish works great for planning ahead. You can get everything ready up to the baking part, wrap it tight, and stick it in the fridge for a day. When you're ready to cook, just add about 10 extra minutes to the first covered baking time. The taste actually gets better as it sits, making it perfect for busy nights or when friends come over.
Seasonal Variations
In summer, try swapping in zucchini or yellow squash instead of butternut squash, and cook it a bit less since these cook quicker. Fall is great for mixing in some diced apple for surprise sweetness or fresh sage instead of dried herbs. During winter, throw in chunky veggies like parsnips or sweet potatoes along with the butternut squash to make it even more filling.

Serving Suggestions
This bake can totally stand alone as a full meal, but it's great with a simple green salad tossed in lemon and olive oil. If you want something heartier, grab some crusty bread to mop up the sauce, or add steamed green beans with a bit of butter and toasted almonds. A cool glass of Chardonnay or light Pinot Noir goes perfectly with the flavors.
Leftovers Transformation
Turn your leftovers into something completely new by pulling apart the chicken and veggies, then mixing with hot pasta and a splash of cream for an amazing pasta dish. You could also stuff the leftovers into a pie crust with puff pastry on top, or blend it with more stock for a thick soup. The flavors actually get stronger overnight, so leftovers sometimes taste even better than the first night.
Frequently Asked Questions
- → What if I prefer chicken breasts?
You can swap in chicken breasts, but thighs tend to stay juicier and more flavorful when baked.
- → Can the dish be prepped in advance?
Yes! You can put it together and refrigerate for up to 24 hours before popping it in the oven.
- → What works instead of Parmesan?
Pecorino Romano or even a cheddar blend makes a good alternative for a cheesy topping.
- → How can I adapt this for a gluten-free meal?
Just swap in a gluten-free chicken broth, and you're good to go.
- → Can I freeze the leftovers?
Of course! Store portions in airtight containers and freeze for up to three months.