Creamy Chicken, Squash & Kale Casserole Is High-Protein Comfort Food
When the weather turns chilly, there’s nothing more comforting than a warm, bubbling casserole straight from the oven. This creamy chicken, squash and kale casserole delivers all the cosy flavour you crave, with a nutritious twist. Tender chicken, sweet roasted butternut squash and hearty kale are folded into a rich, creamy sauce made lighter with Greek yogurt, then topped with melted cheese. With an estimated 35 to 40 grams of protein per serving, it’s a satisfying high-protein dinner that’s perfect for busy weeknights and meal prep alike.
Why You’ll Love This Casserole
This recipe hits the sweet spot between comfort food and wholesome eating. Butternut squash brings natural sweetness, fibre and vitamin A, while kale adds colour, texture and plenty of nutrients. Using Greek yogurt and a little cream cheese instead of heavy cream keeps the sauce creamy while boosting protein. It’s a complete meal in one dish, it reheats beautifully, and it’s easy to adapt with whatever vegetables you have on hand.
Ingredients
Serves: 6
Prep time: 20 minutes
Cook time: 45 minutes
- 4 cups (about 600 g) butternut squash, peeled and cut into 2 cm cubes
- 1 tbsp olive oil, plus extra for the pan
- 680 g (1.5 lb) boneless, skinless chicken breasts, cut into bite-sized pieces
- 1 medium onion, finely diced
- 3 garlic cloves, minced
- 4 cups (about 120 g) kale, stems removed and leaves chopped
- 1 tsp dried thyme
- 1 tsp smoked paprika
- ½ tsp salt, plus more to taste
- ½ tsp black pepper
- 1 cup (240 ml) low-sodium chicken broth
- 115 g (4 oz) light cream cheese, softened
- 1 cup (245 g) plain Greek yogurt, at room temperature
- 1 tsp Dijon mustard
- ½ cup (50 g) grated Parmesan
- 1 cup (115 g) shredded mozzarella
How to Make It
Roast the squash. Preheat the oven to 200°C (400°F). Toss the squash cubes with half the olive oil, a pinch of salt and pepper, then spread them on a baking tray. Roast for 20 minutes, until just tender and lightly golden.
Cook the chicken. While the squash roasts, heat the remaining oil in a large ovenproof frying pan or skillet over medium-high heat. Season the chicken with thyme, smoked paprika, salt and pepper, then cook for 5 to 6 minutes, until lightly browned. It doesn’t need to be cooked through yet.
Add the aromatics and kale. Add the onion to the pan and cook for 3 minutes until softened, then stir in the garlic for 30 seconds. Add the kale and a splash of broth, and cook for 2 to 3 minutes until wilted.
Make the creamy sauce. Pour in the remaining broth and stir in the cream cheese until melted and smooth. Remove the pan from the heat and let it cool for a minute, then stir in the Greek yogurt, Dijon mustard and half the Parmesan. Adding the yogurt off the heat helps stop it from splitting.
Combine and top. Gently fold in the roasted squash. If your pan isn’t ovenproof, transfer everything to a greased 23 x 33 cm (9 x 13 inch) baking dish. Sprinkle the mozzarella and remaining Parmesan over the top.
Bake. Bake for 20 to 25 minutes, until the cheese is melted and golden and the sauce is bubbling. The chicken should reach 74°C (165°F) in the thickest piece.
Rest and serve. Let the casserole rest for 5 minutes before serving so the sauce can thicken slightly.
Nutrition at a Glance (Per Serving, Estimated)
| Nutrient | Approximate Amount |
|---|---|
| Servings | 6 |
| Protein | 35–40 g |
| Key protein sources | Chicken breast, Greek yogurt, mozzarella, Parmesan |
| Fibre-rich ingredients | Butternut squash, kale |
| Key vitamins | Vitamin A (squash), vitamin K and vitamin C (kale) |
Nutrition values are estimates and will vary depending on the brands and exact quantities used.
Easy Swaps and Variations
- Use rotisserie chicken. Shred about 4 cups of cooked chicken and skip the browning step to save time.
- Swap the greens. Spinach or Swiss chard work well instead of kale. Add spinach right at the end, as it wilts quickly.
- Try a different squash. Sweet potato or pumpkin make tasty alternatives to butternut squash.
- Add grains. Stir in a cup of cooked quinoa or brown rice to make it even heartier.
- Make it cheesier. Swap mozzarella for Gruyère or sharp cheddar for a richer flavour.
- Add some crunch. Top with panko breadcrumbs mixed with a little olive oil before baking.
Make-Ahead and Storage Tips
- Make ahead: Assemble the casserole up to a day in advance, cover and refrigerate. Add 5 to 10 minutes to the baking time if cooking from cold.
- Store: Keep leftovers in an airtight container in the fridge for up to 4 days.
- Reheat: Warm individual portions in the microwave or reheat the whole dish, covered, in the oven at 180°C (350°F) until hot.
- Freeze: Freeze cooled portions for up to 3 months. Thaw overnight in the fridge before reheating. The sauce may separate slightly but will come back together when stirred.
The Bottom Line
This creamy chicken, squash and kale casserole proves that comfort food can also be nourishing. Packed with protein, colourful vegetables and a rich, cheesy sauce, it’s a cosy one-dish dinner the whole family will love. Make it on a chilly weeknight or prep it ahead for easy lunches all week long.
FAQ
How much protein is in this chicken casserole?
Each serving contains an estimated 35 to 40 grams of protein, thanks to chicken breast, Greek yogurt, mozzarella and Parmesan.
Can I make this casserole ahead of time?
Yes. Assemble it up to a day ahead and keep it covered in the fridge. Add a few extra minutes to the baking time when cooking it straight from the fridge.
Will the Greek yogurt curdle in the oven?
Stirring the yogurt in off the heat and using it at room temperature helps prevent splitting. The cream cheese also helps keep the sauce smooth.
Can I freeze chicken, squash and kale casserole?
Yes. Freeze cooled portions for up to 3 months, then thaw overnight in the fridge and reheat until piping hot.
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