Thereās something so comforting about a warm, creamy casserole, especially one that fits perfectly into a keto lifestyle. The Keto Garlic Mushroom Chicken Casserole quickly became a favorite in my houseānot just for its rich flavors but for how effortlessly it comes together on busy weeknights. As a mom who’s always juggling a million things, I love that this dish feels indulgent without the fuss. Itās one of those meals where the garlic and mushrooms infuse the chicken with deep, earthy goodness, making every bite cozy and satisfying. Plus, itās a wonderful way to sneak in veggies while keeping things low-carb and family-friendly.
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Why You’ll Love This Keto Garlic Mushroom Chicken Casserole
This casserole is a true weeknight hero. First, itās incredibly simple to prepare, which is a lifesaver when Emma and Noah are both asking for snacks and homework is looming. The creamy garlic sauce feels decadent but uses wholesome ingredients, so itās nourishing without any guilt. I love how the mushrooms add an earthy depth that makes this more than just a typical chicken dishāit feels like a comforting hug from the inside. Lastly, itās versatile enough to please picky eaters, yet satisfying enough to keep adults happy, too. Itās become one of those dishes I turn to when I want to bring warmth and smiles to our dinner table.
Ingredients You’ll Need for This Keto Garlic Mushroom Chicken Casserole

The key to this dish lies in selecting the right ingredients that will build layers of flavor without complicating the process. I always choose fresh, organic mushrooms and free-range chicken breasts when possible, as their quality shines through in a simple recipe like this. Fresh garlic is a mustāpre-minced just wonāt do when you want that fragrant punch. When I started cooking for my own kids, I realized how much the best ingredients can elevate even the easiest meals, making them feel special and loved.
- 4 boneless, skinless chicken breasts
- 2 cups sliced cremini or white mushrooms
- 4 cloves garlic, minced
- 1 cup heavy cream
- 1/2 cup chicken broth (low sodium)
- 1/2 cup shredded mozzarella cheese
- 1/4 cup grated Parmesan cheese
- 2 tablespoons olive oil
- 1 teaspoon dried thyme or 1 tablespoon fresh thyme leaves
- Salt and black pepper, to taste
- Fresh parsley, chopped (for garnish)
Substitutions: You can swap the heavy cream for full-fat coconut milk if you prefer a dairy-free option. If mozzarella isnāt your thing, cheddar or Monterey Jack work beautifully here. And if chicken breasts arenāt on hand, thighs are a juicier alternative that also fits keto perfectly.
Nutrition Facts
- Calories: Approximately 420 per serving
- Protein: 38g
- Fat: 28g
- Carbohydrates: 5g
- Fiber: 1g
- Sugar: 2g
- Sodium: 380mg (adjust with broth and salt)
Irresistible Keto Garlic Mushroom Chicken Casserole Recipe You Need to Try
Learn how to make delicious Keto Garlic Mushroom Chicken Casserole. Easy recipe with step-by-step instructions.
- Total Time: 45 minutes
- Yield: 4 servings 1x
Ingredients
The key to this dish lies in selecting the right ingredients that will build layers of flavor without complicating the process. I always choose fresh, organic mushrooms and free-range chicken breasts when possible, as their quality shines through in a simple recipe like this. Fresh garlic is a mustāpre-minced just wonāt do when you want that fragrant punch. When I started cooking for my own kids, I realized how much the best ingredients can elevate even the easiest meals, making them feel special and loved.
- 4 boneless, skinless chicken breasts
- 2 cups sliced cremini or white mushrooms
- 4 cloves garlic, minced
- 1 cup heavy cream
- 1/2 cup chicken broth (low sodium)
- 1/2 cup shredded mozzarella cheese
- 1/4 cup grated Parmesan cheese
- 2 tablespoons olive oil
- 1 teaspoon dried thyme or 1 tablespoon fresh thyme leaves
- Salt and black pepper, to taste
- Fresh parsley, chopped (for garnish)
Substitutions: You can swap the heavy cream for full-fat coconut milk if you prefer a dairy-free option. If mozzarella isnāt your thing, cheddar or Monterey Jack work beautifully here. And if chicken breasts arenāt on hand, thighs are a juicier alternative that also fits keto perfectly.
Instructions
- Preheat your oven to 375°F (190°C). Lightly grease a baking dish with olive oil.
- Heat olive oil in a large skillet over medium heat. Season chicken breasts with salt, pepper, and thyme.
- Sear the chicken on both sides until golden brown, about 3-4 minutes per side. Transfer to the baking dish.
- In the same skillet, add mushrooms and sautƩ until they release their moisture and start to brown, about 6 minutes.
- Add minced garlic to the mushrooms and cook for another minute until fragrant, stirring frequently to avoid burning.
- Pour in the chicken broth and let it simmer for 2 minutes, scraping any browned bits off the bottom of the pan.
- Reduce heat to low and stir in the heavy cream. Let the sauce thicken slightly for 3-4 minutes.
- Pour the creamy mushroom sauce over the chicken breasts in the baking dish.
- Sprinkle mozzarella and Parmesan evenly on top.
- Bake uncovered for 20-25 minutes or until the chicken reaches an internal temperature of 165°F (74°C) and the cheese is bubbly and golden.
- Garnish with fresh parsley before serving for a pop of color and freshness.
- Prep Time: 15 minutes
- Cook Time: 30 minutes
- Category: Main Dish
- Method: Cooking
- Cuisine: International
Keywords: Keto Garlic Mushroom Chicken Casserole, recipe, cooking, food
Steps to Create Your Keto Garlic Mushroom Chicken Casserole
- Preheat your oven to 375°F (190°C). Lightly grease a baking dish with olive oil.
- Heat olive oil in a large skillet over medium heat. Season chicken breasts with salt, pepper, and thyme.
- Sear the chicken on both sides until golden brown, about 3-4 minutes per side. Transfer to the baking dish.
- In the same skillet, add mushrooms and sautƩ until they release their moisture and start to brown, about 6 minutes.
- Add minced garlic to the mushrooms and cook for another minute until fragrant, stirring frequently to avoid burning.
- Pour in the chicken broth and let it simmer for 2 minutes, scraping any browned bits off the bottom of the pan.
- Reduce heat to low and stir in the heavy cream. Let the sauce thicken slightly for 3-4 minutes.
- Pour the creamy mushroom sauce over the chicken breasts in the baking dish.
- Sprinkle mozzarella and Parmesan evenly on top.
- Bake uncovered for 20-25 minutes or until the chicken reaches an internal temperature of 165°F (74°C) and the cheese is bubbly and golden.
- Garnish with fresh parsley before serving for a pop of color and freshness.
Tips for Making the Best Keto Garlic Mushroom Chicken Casserole
Getting this casserole just right is about layering flavors and paying attention to texture. From my kitchen to yours, here are some insights Iāve gathered over time that make a big difference: Learn more: Irresistible Chicken Alfredo Garlic Bread Recipe You Need to Try
- Use fresh garlic and sautĆ© it gently to avoid bitternessāburnt garlic can ruin the sauce.
- Donāt rush the mushroom sautĆ©ing step; letting them brown properly adds a rich umami flavor.
- Season the chicken well before searing to lock in flavor and create a nice crust.
- Let the sauce simmer slowly to thickenāitās worth the extra few minutes for the creamy consistency.
- For extra richness, stir in a tablespoon of cream cheese before baking.
These little details remind me of the time I first made this for my family and realized that simple tweaks can turn a good meal into a cherished tradition. Learn more: related recipe
Serving Suggestions and Pairings

This casserole feels like the perfect dish for those cozy nights when you want to bring everyone together around the table. I often serve it when the kids have had a busy day at schoolāitās comforting and filling without being heavy. Presentation-wise, a sprinkle of fresh parsley brightens things up and makes it feel a little festive.
- Serve with a crisp green salad dressed with lemon vinaigrette to balance the richness
- Pair with steamed or roasted low-carb veggies like asparagus or broccoli
- A light glass of dry white wine or sparkling water with a slice of cucumber complements the creamy sauce beautifully
- For a heartier meal, add cauliflower mash or zucchini noodles on the side
Whether itās a quiet weeknight or a casual family gathering, this casserole always brings a sense of warmth and comfort to our table.
Storage and Reheating Tips
Proper storage is key to enjoying this casserole beyond the first meal. I find that making a little extra means a quick, delicious lunch the next day when life gets hectic.
- Store leftovers in an airtight container in the refrigerator for up to 3 days
- When reheating, add a splash of cream or broth to refresh the sauceās creaminess
- Reheat gently over low heat on the stove or in the microwave to avoid separating the sauce
- This dish also freezes wellāfreeze in portions and thaw overnight before reheating
Frequently Asked Questions
What are the main ingredients for Keto Garlic Mushroom Chicken Casserole?
The main ingredients for Keto Garlic Mushroom Chicken Casserole include the items listed in our ingredients section above. Each ingredient plays a crucial role in achieving the perfect flavor and texture.
How long does it take to make Keto Garlic Mushroom Chicken Casserole?
The total time to make Keto Garlic Mushroom Chicken Casserole includes both preparation and cooking time. Check the recipe card above for exact timing details.
Can I make Keto Garlic Mushroom Chicken Casserole ahead of time?
Yes, Keto Garlic Mushroom Chicken Casserole can often be prepared in advance. Store it properly in an airtight container in the refrigerator and consume within the recommended timeframe.
What can I serve with Keto Garlic Mushroom Chicken Casserole?
Keto Garlic Mushroom Chicken Casserole pairs well with various sides and accompaniments. Consider the serving suggestions mentioned in the recipe for the best dining experience.
Is Keto Garlic Mushroom Chicken Casserole suitable for special diets?
Depending on the ingredients used, Keto Garlic Mushroom Chicken Casserole may be adapted for various dietary needs. Check the ingredients list and consider substitutions as needed for your dietary requirements.
Final Thoughts
I hope this Keto Garlic Mushroom Chicken Casserole becomes one of your go-to recipes when you want something nourishing, flavorful, and simple. Cooking should feel joyful and doable, even on the busiest days, and this casserole offers just that. Iād love to hear how it turns out for youādrop a comment or share your own twists anytime!
