One-Pan Marry Me Chicken Casserole
This Marry Me Chicken casserole takes all the creamy, sun-dried tomato tang of the beloved skillet dish and bakes it into a bubbling, golden-topped pasta dinner. It comes together in one oven-safe pan, so you get bold flavor with less cleanup.
The sauce is rich and garlicky, the chicken stays tender, and the cheese crust is the part everyone fights over. For a weeknight meal that feels like a real treat, this one delivers.
Why This Casserole Earns Its Name
The sauce is deeply savory from parmesan and sun-dried tomatoes, with just enough spinach to keep things from feeling heavy. Every bite has a little bit of everything: juicy chicken, soft pasta, and that glossy cream sauce that clings to the ridges.
It’s the kind of dish that tastes like you spent hours on it, but most of the work is a quick sear and a stir before the oven takes over. I come back to it whenever I want something comforting that does not leave a sink full of pots.
Ingredients
- 1 ½ lb boneless, skinless chicken breasts, cut into bite-sized pieces: thighs work too, just keep the pieces similar in size.
- ½ tsp salt, plus more for pasta water
- ¼ tsp black pepper
- 2 tbsp olive oil
- 2 tbsp unsalted butter
- 4 cloves garlic, minced: use fresh for the best flavor.
- ½ cup oil-packed sun-dried tomatoes, drained and roughly chopped: the oil adds a fruity depth to the sauce.
- 1 cup chicken broth
- 1 cup heavy cream
- ½ cup grated parmesan cheese: fresh-grated melts smoother than pre-shredded.
- 1 tsp Italian seasoning
- ¼ tsp red pepper flakes, optional: adds a gentle warmth, not heat.
- 3 cups fresh spinach, roughly chopped
- 8 oz short pasta (penne, rigatoni, or rotini)
- 1 ½ cups shredded mozzarella cheese
Variations / Substitutions
- Use rotisserie chicken: shred 3 cups of cooked chicken and skip the searing step; stir it into the sauce before adding pasta.
- Dairy-free option: swap the cream for a can of full-fat coconut milk (not light) and use a vegan parmesan. The sauce will be a little thinner but still creamy.
- Make it gluten-free: use your favorite gluten-free short pasta and cook it a minute short of al dente so it holds up in the bake.
- Add mushrooms: sauté 8 oz sliced cremini mushrooms in the pan after the chicken, then proceed with the garlic.
- Tone down the spice: simply leave out the red pepper flakes; the dish stays rich and garlicky without them.
For the classic skillet version without pasta, try our Creamy Marry Me Chicken recipe.
How To Make One-Pan Marry Me Chicken Casserole
Step 1: Sear the Chicken
Preheat your oven to 375°F (190°C). Season the 1 ½ lb chicken pieces with the ½ tsp salt and ¼ tsp pepper. Warm the 2 tbsp olive oil in a large oven-safe skillet or braiser over medium-high heat. Add the chicken in a single layer and cook for about 4 minutes without moving it, until the underside is golden. Flip and cook another 2 minutes, then transfer to a plate. The chicken won’t be fully cooked yet, and that’s good.
You want those browned bits stuck to the pan. They will release into the sauce and carry roasted flavor through the whole dish.
Step 2: Build the Creamy Sauce
Lower the heat to medium and drop the 2 tbsp butter into the same pan. Once it melts, add the 4 minced garlic cloves and the ½ cup chopped sun-dried tomatoes. Stir constantly for 1 minute, just until the garlic is fragrant. Pour in the 1 cup chicken broth and scrape up any browned bits with a wooden spoon.
Let the broth bubble gently for 2 minutes, then stir in the 1 cup heavy cream, ½ cup parmesan, 1 tsp Italian seasoning, and the optional ¼ tsp red pepper flakes. Keep stirring until the cheese melts into a smooth sauce. The color will shift to a warm peachy orange from the tomato oil.
Step 3: Toss Together the Casserole
Remove the pan from the heat. Stir in the 3 cups chopped spinach until it wilts down, then add the 8 oz dry pasta directly to the sauce. No need to cook it separately. Return the seared chicken and any juices on the plate to the pan and toss everything until the pasta is coated and evenly distributed.
If your skillet is not oven-safe, transfer the mixture to a greased 9×13 baking dish now. Otherwise, keep it right in the pan.
Step 4: Bake Until Bubbly
Spread the mixture into an even layer. Top with the 1 ½ cups shredded mozzarella, covering the surface from edge to edge. Slide the pan into the oven and bake for 20 to 25 minutes, until the cheese is melted and the edges are bubbling.
The pasta will absorb liquid from the sauce as it bakes, so it cooks through without getting mushy. A little golden spotting on the cheese tells you it is ready.
Step 5: Rest and Serve the Casserole
Let the pan sit at room temperature for 5 minutes. This lets the sauce settle so it does not run when you scoop. Grab a big spoon, cut into portions, and serve straight from the pan.
Scoop down through the golden cheese layer and you will reveal creamy pasta and tender chicken underneath. Serve while it’s still warm and the cheese is stretchy.
A Few Notes Before You Start
- Pasta choice matters: Stick with sturdy short shapes like penne or rigatoni that can handle the bake without turning to mush. Avoid long strands like spaghetti.
- Salt the pasta water: Even though you add the pasta dry, you still need to salt the sauce well. Taste the cream mixture before adding the pasta and adjust so it tastes well-seasoned but not salty.
- Don’t overbake: Check at the 20-minute mark. You want the cheese melted and barely golden, not browned and stiff. Overbaking can dry out the chicken.
- Use freshly grated parmesan: The pre-grated stuff often has anti-caking agents that make the sauce grainy. A block grated on a microplane will melt silky smooth.
Storing and Reheating Leftovers
- Refrigerate: Cool the casserole completely, then cover and store in the fridge for up to 3 days.
- Reheating: Warm individual portions in the microwave, or cover the whole dish with foil and reheat in a 350°F oven until hot throughout, about 15 minutes. The pasta will absorb more liquid as it sits, so add a splash of broth or cream if it looks dry.
What To Serve With Marry Me Chicken Casserole
A bright, simple salad dressed with lemon and olive oil cuts through the richness of the sauce. Garlic bread on the side is ideal for sopping up any leftover creamy bits. For something green without a salad, steamed or roasted green beans with a squeeze of lemon work well right alongside the casserole.
Frequently Asked Questions
Can I use cooked chicken instead of raw?
Yes. Shred about 3 cups of rotisserie or leftover chicken and stir it in when you add the spinach. You can skip the searing step entirely and start with the butter and garlic.
Is this casserole spicy?
No, the red pepper flakes add a faint warmth deep in the background, not heat. Leave them out if you prefer a completely mild dish.
Can I make this ahead of time?
Assemble the casserole up to 24 hours in advance, cover, and refrigerate without baking. When you are ready, bake it straight from the fridge, adding about 5 extra minutes to the cook time.
Why is my sauce grainy?
That usually happens if the parmesan is added to a boiling sauce or if you used pre-shredded cheese with anti-caking agents. Keep the heat low when melting the cheese and grate your own for the smoothest texture.
Marry Me Chicken Casserole Recipe
Ingredients
Method
- Preheat oven to 375°F (190°C). Season chicken with salt and pepper. Heat olive oil in a large oven-safe skillet over medium-high. Sear chicken until golden, about 4 minutes per side, then transfer to a plate.
- Reduce heat to medium. Melt butter in the pan, add garlic and sun-dried tomatoes, and stir 1 minute. Pour in broth, scrape up browned bits, and simmer 2 minutes. Stir in cream, parmesan, Italian seasoning, and red pepper flakes until smooth.
- Remove from heat. Stir in spinach until wilted, then add dry pasta, chicken, and any juices. Toss until everything is evenly combined.
- Level the mixture and top with mozzarella. Bake for 20 to 25 minutes, until cheese is melted and edges are bubbly.
- Let the casserole rest for 5 minutes, then scoop and serve warm.
