🧄 Keto Garlic Mushroom Chicken Casserole — Creamy Low-Carb Comfort Food
If you’ve ever stood in your kitchen craving something rich, comforting, and satisfying—but still keto-friendly—you’re going to fall in love with this Keto Garlic Mushroom Chicken Casserole. It’s creamy, savory, and packed with flavor, without any of the carb guilt.
Hi, I’m Luma from recipeshall.com, and this recipe is one of those “save it forever” dinners. It’s the kind of meal you make once and suddenly find yourself adding to your weekly rotation. Cozy enough for cold evenings, easy enough for busy weeknights, and indulgent enough that no one at the table will guess it’s low-carb.
🌟 Why You’ll Love This Keto Garlic Mushroom Chicken Casserole
- Low-carb & keto-friendly without sacrificing flavor
- One-dish comfort food that feels indulgent
- Family-approved (even by non-keto eaters)
- Great for meal prep and leftovers
- Simple ingredients you probably already have
If you enjoy cozy casseroles, you might also love my Low Carb Philly Cheesesteak Casserole — another reader favorite for busy nights.
🛒 Ingredients (Serves 4)
- 1½ lbs boneless, skinless chicken breasts or thighs
- 2 tablespoons olive oil
- 3 cups mushrooms, sliced
- 4 cloves garlic, minced
- 1 cup heavy cream
- ½ cup chicken broth
- 1 cup shredded mozzarella cheese
- ½ cup grated Parmesan cheese
- 1 teaspoon Italian seasoning
- Salt and black pepper, to taste
- Optional garnish: fresh parsley
👩🍳 How to Make Keto Garlic Mushroom Chicken Casserole
1. Cook the Chicken
Preheat your oven to 375°F (190°C). Season chicken with salt and pepper. Heat olive oil in a skillet over medium heat and sear chicken until lightly golden on both sides (about 3–4 minutes per side). Remove and set aside.
2. Sauté Mushrooms & Garlic
In the same skillet, add mushrooms and cook until they release their moisture and begin to brown. Stir in garlic and cook for about 30 seconds, just until fragrant.
3. Make the Creamy Sauce
Pour in chicken broth and heavy cream. Stir well and let the sauce simmer gently for 3–4 minutes until slightly thickened. Add Italian seasoning and adjust salt and pepper to taste.
4. Assemble the Casserole
Place chicken in a greased baking dish. Spoon mushroom garlic sauce over the chicken. Sprinkle mozzarella and Parmesan evenly on top.
5. Bake
Bake uncovered for 20–25 minutes, or until chicken is fully cooked and cheese is bubbly and lightly golden.
6. Serve
Let rest for 5 minutes before serving. Garnish with parsley if desired.
💡 Tips for the Best Results
- Chicken thighs stay extra juicy, but breasts work great too.
- Don’t rush the mushrooms — letting them brown adds deep flavor.
- If your sauce looks thin, don’t panic. It thickens beautifully in the oven.
- For extra richness, add a tablespoon of cream cheese to the sauce.
If you’re planning meals ahead, this pairs wonderfully with Sheet-Pan Freezer Meals for easy keto planning.
❤️ From My Kitchen to Yours
This casserole became a staple during one of those weeks when everything felt busy and exhausting. I needed dinner to be comforting but not heavy, easy but still special. When I pulled this bubbling dish from the oven, my kitchen smelled like garlic heaven — and the silence at the table said everything. Plates were clean. Complaints were zero. That’s a win in my book.
❓ FAQs
Can I make this ahead of time?
Yes! Assemble the casserole, cover, and refrigerate up to 24 hours before baking.
Can I freeze it?
Absolutely. Freeze unbaked for best texture. Thaw overnight and bake as directed.
What can I serve with it?
Cauliflower mash, zucchini noodles, or a simple green salad work perfectly.
Is this gluten-free?
Yes — it’s naturally gluten-free and keto-friendly.
🌟 Final Bite
This Keto Garlic Mushroom Chicken Casserole proves that low-carb dinners don’t have to feel boring or restrictive. It’s creamy, cozy, and deeply satisfying — the kind of meal that makes everyone at the table happy, keto or not.
From my kitchen to yours, may this dish bring warmth, comfort, and a little less stress to your dinner routine. 💛
