Creamy Low Carb Chicken Casserole

The smell of bubbling cheese and cream always pulls me into the kitchen faster than anything else. This casserole came together on a rainy Tuesday when I needed something that felt like a hug but wouldn't derail my eating habits. My husband actually asked for seconds, which never happens with low-carb meals around here.

Last winter my sister was visiting and watching her carbs, so I threw this together hoping she wouldn't feel deprived. She texted me the next day asking for the recipe, saying her kids had eaten every bite without complaining once about the broccoli.

Ingredients

• Chicken breasts: Cutting them into bite-sized pieces helps them cook evenly and stay tender throughout the baking time
• Broccoli florets: Fresh broccoli holds up better than frozen, giving you that perfect tender-crisp texture
• Mushrooms: These release moisture as they cook, adding depth to the sauce without extra liquid
• Onion and garlic: The aromatic base that makes your whole kitchen smell amazing
• Heavy cream: This creates the luxurious texture that makes the sauce coat everything perfectly
• Mozzarella and parmesan: The combination gives you both melt and that sharp salty bite we all crave
• Cream cheese: The secret ingredient that makes the sauce taste restaurant-quality
• Chicken broth: Adds savory depth without thinning out the creaminess
• Dried thyme: Brings an earthy herbal note that bridges the chicken and vegetables
• Salt and pepper: Don't skimp here, this sauce needs proper seasoning to shine

Instructions

Preheat your oven:

Get it to 200°C (400°F) so it's ready when you are

Sauté the aromatics:

Heat olive oil in a large skillet and cook onions and garlic for 2-3 minutes until fragrant

Brown the chicken:

Add chicken pieces and cook 5-6 minutes until browned but not cooked through

Add vegetables:

Toss in mushrooms and broccoli, sautéing 3-4 minutes until vegetables start softening

Make the sauce:

In a saucepan, combine heavy cream, chicken broth, cream cheese, thyme, salt, and pepper, heating gently until smooth

Melt in the cheese:

Stir in mozzarella and parmesan until melted and sauce thickens, about 2-3 minutes

Combine everything:

Mix chicken and vegetables with the creamy sauce in a large bowl until fully coated

Transfer to dish:

Pour mixture into a greased casserole dish and top with extra mozzarella if using

Bake until golden:

Bake 20-25 minutes until bubbly and golden on top

Garnish and serve:

Sprinkle fresh parsley on top for color and freshness

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This recipe became my go-to for meal prep Sundays because it reheats beautifully. My coworker actually asked what smelled so good when I warmed it up in the office microwave.

Making It Your Own

Cauliflower works beautifully instead of broccoli if that's what you have on hand. Sometimes I add spinach during the last few minutes of sautéing for extra nutrients.

Time-Saving Tricks

Rotisserie chicken shreds perfectly for this recipe and cuts prep time in half. Just skip the initial chicken cooking step and add it directly to the vegetable mixture.

Serving Suggestions

A crisp green salad with vinaigrette cuts through the richness nicely. I also love this with a glass of dry white wine.

• Let the casserole rest 5 minutes before serving
• The sauce thickens as it stands
• Leftovers keep for 3-4 days in the refrigerator

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There's something so satisfying about pulling a golden, bubbling casserole out of the oven. Hope this becomes a staple in your kitchen too.

Recipe Questions & Answers

→ Can I make this ahead of time?

Yes, assemble the dish up to 24 hours in advance and refrigerate. Add 5-10 minutes to baking time if cooking from cold.

→ What vegetables work best as substitutions?

Cauliflower, spinach, or bell peppers substitute well for broccoli. Avoid high-water vegetables like zucchini that could make the sauce too thin.

→ Can I freeze leftovers?

Portion cooled leftovers into airtight containers and freeze for up to 3 months. Thaw overnight in the refrigerator before reheating at 180°C (350°F).

→ How do I make the sauce thicker?

Simmer the cream mixture longer before adding cheese, or reduce the chicken broth slightly. A sprinkle of xanthan gum also works without affecting flavor.

→ What protein alternatives can I use?

Diced turkey breast or leftover rotisserie chicken work perfectly. For a dairy-free version, use coconut cream and nutritional yeast instead of cheese.