Marry Me Low Carb Chicken

My sister actually got engaged over this casserole, which is how it earned its name in our family. We were halfway through dinner when her boyfriend dropped to one knee, and I honestly think the sun-dried tomatoes and cream sauce had something to do with setting the mood. Now it shows up at every celebration, from birthdays to tough weeks when someone needs comfort food that still feels special.

I first made this during a phase where I was determined to prove that low carb didnt mean boring dinners. My husband took one bite and asked why wed ever eaten regular pasta casseroles when this existed. The way the spinach wilts into the sauce and the mozzarella gets that perfect golden bubble on top makes it look like you spent hours, even though it comes together in minutes.

Ingredients

• Boneless skinless chicken breasts: Pound them to even thickness so they cook at the same rate and stay juicy
• Heavy cream: Dont substitute this, it reduces beautifully and creates the silky base that makes everything else work
• Sun-dried tomatoes: Look for oil-packed ones and drain them well, they pack way more flavor than the dry kind
• Fresh spinach: Baby spinach is best here since it cooks down tender without becoming tough or bitter
• Parmesan and mozzarella: The combo gives you sharp salty notes plus that perfect melted cheese pull
• Italian seasoning: If you have fresh herbs, use them, but the dried blend works perfectly here
• Red pepper flakes: Start with a quarter teaspoon if youre sensitive to heat, it does build as it bakes

Instructions

Get your oven ready:

Preheat to 400°F and grease your baking dish with a little butter or oil, this prevents sticking and helps the edges get golden

Season the chicken:

Pat the chicken dry and rub it with salt, pepper, and Italian seasoning on both sides before arranging it in your dish

Make the cream sauce:

Whisk the heavy cream, grated Parmesan, minced garlic, and red pepper flakes until smooth, then pour it right over the seasoned chicken

Add the extras:

Scatter the sliced sun-dried tomatoes and chopped spinach around the chicken pieces, then top everything with shredded mozzarella

Bake until bubbly:

Slide it into the oven for 25 to 30 minutes, checking that the chicken reaches 165°F and the cheese is golden in spots

Let it rest:

Give the dish five minutes before serving so the sauce thickens slightly and the juices redistribute

Save to Pinterest

Last winter my neighbor was going through a divorce and I brought over a pan of this still warm from the oven. She texted me at midnight to say it was the first thing shed actually enjoyed eating in weeks. Thats when I realized this recipe isnt just about the ingredients, its about making people feel taken care of.

Making It Ahead

You can assemble everything up to a day ahead and keep it covered in the refrigerator. The sauce might separate slightly but it comes back together beautifully in the oven. If baking cold, add about five minutes to the cooking time.

Vegetable Swaps

Kale works beautifully instead of spinach and holds up a bit better through baking. Artichoke hearts would be amazing here too, just drain them well and chop them roughly before adding to the dish.

Serving Ideas

Cauliflower rice is my go-to side because it soaks up that incredible sauce. A crisp green salad with a vinaigrette cuts through the richness perfectly.

• Cauliflower rice or steamed broccoli
• Zucchini noodles for more veggie volume
• Keep it simple with just the casserole, its that satisfying on its own

Save to Pinterest

Theres something about pulling this bubbling, golden dish out of the oven that makes even regular weeknights feel like a small celebration.

Your Recipe Questions Answered

→ Can I use fresh tomatoes instead of sun-dried?

Fresh tomatoes can be used, but they may add more moisture, so draining them well or lightly roasting first helps maintain the casserole's texture.

→ Is it necessary to sear the chicken before baking?

Searing is optional but enhances flavor and helps lock in juices for a more succulent result.

→ What can I substitute for spinach?

Kale or Swiss chard are great alternatives, offering a similar texture and complementary flavor.

→ How do I adjust the spice level?

Modify crushed red pepper flakes according to your preference or omit them for a milder dish.

→ Can this dish be made dairy-free?

Replacing dairy with plant-based cream and cheese alternatives is possible but may alter the creamy texture and flavor profile.