1½ lbs (680g) boneless, skinless chicken breasts, cubed
8 oz (225g) penne or rotini pasta, uncooked
4 cups (5 oz) fresh spinach, roughly chopped (or 10 oz frozen, thawed & squeezed dry)
1 small onion, diced
3 cloves garlic, minced
For the Cream Sauce:
2 tbsp butter
2 tbsp all-purpose flour (or GF flour/cornstarch)
2 cups (480ml) chicken broth
1 cup (240ml) heavy cream or half-and-half
¾ cup (75g) freshly grated Parmesan cheese
½ tsp dried thyme
¼ tsp nutmeg (optional but lovely)
Salt & black pepper to taste
For Topping:
1½ cups (6 oz) shredded mozzarella or provolone cheese
💡 Pro Tips:Use uncooked pasta—it absorbs flavor as it bakes.Squeeze frozen spinach DRY—excess water makes casserole soggy.Freshly grate Parmesan—pre-shredded won’t melt smoothly.
Step-by-Step Instructions (Creamy, Hearty, Foolproof)
1. Prep & Preheat
Preheat oven to 375°F (190°C). Grease a 9×13-inch baking dish.
2. Sear the Chicken
Season chicken with salt and pepper.
In an oven-safe skillet or pot, sear chicken in 1 tbsp oil over medium-high heat until golden (not fully cooked). Remove and set aside.
3. Make the Sauce
In the same pot, melt butter over medium heat.
Add onion; cook 3–4 minutes until soft.
Stir in garlic; cook 1 minute.
Whisk in flour; cook 1 minute (roux).
Gradually whisk in chicken broth, then heavy cream.
Bring to a simmer; stir in Parmesan, thyme, nutmeg, salt, and pepper until smooth and thickened.
4. Assemble
Stir in uncooked pasta, spinach, and seared chicken.
Pour mixture into baking dish.
Top with mozzarella/provolone.
5. Bake to Perfection
Cover with foil; bake 25 minutes.
Uncover; bake 10–15 minutes more until pasta is tender, sauce is bubbly, and cheese is golden.
Let rest 5–10 minutes before serving.
Serving Suggestions
🥖 With garlic bread or crusty rolls for dipping
🥗 Side salad: Arugula with lemon vinaigrette
🍷 Wine pairing: Chardonnay or Pinot Grigio
Make-Ahead & Storage Tips
Fridge: Assemble unbaked; refrigerate up to 24 hours. Add 5–10 mins to bake time.
Freeze: Freeze baked or unbaked (thaw overnight before baking).
Leftovers: Keep up to 4 days—reheat covered in oven.
Frequently Asked Questions
Q: Gluten-free?
A: Yes! Use GF pasta and GF flour or cornstarch slurry.
Q: No heavy cream?
A: Substitute with evaporated milk + 1 tbsp butter.
Q: Can I use leftover chicken?
A: Absolutely! Add cooked chicken with the pasta—reduce liquid by ¼ cup.
Q: Too thick?
A: Stir in more broth, ¼ cup at a time.
❤️ The Heart of the Dish
This isn’t just dinner—it’s a warm embrace on a plate. It’s what you make when you want to nourish your family with hidden greens, creamy comfort, and zero stress.
So layer that chicken, pour that sauce, and trust the oven. Because the best meals aren’t complicated—they’re creamy, green, and made with love.
“Good casserole doesn’t need a recipe—it just needs chicken, spinach, and someone hungry.” 🥬✨
