Keto Garlic Mushroom Chicken Casserole – One Pan Low Carb Dinner Delight

Natalie Dawson
Created

Weeknight dinners just got easier and more flavorful with this Keto Garlic Mushroom Chicken Casserole. Imagine juicy chicken, golden mushrooms, and creamy garlic sauce—all baked together in one pan for a rich, comforting, low-carb meal. This casserole takes the stress out of cooking, giving you a wholesome dish that fits perfectly into your keto lifestyle. In this article, I’ll share the heartwarming story of how this recipe became my go-to dinner, along with the full breakdown of ingredients, step-by-step directions, nutritional values, flavor variations, and answers to common questions. Let’s dive into this one-pan, low-carb dinner delight!

Keto Garlic Mushroom Chicken Casserole – One Pan Low Carb Dinner Delight

How Keto Garlic Mushroom Chicken Casserole Became a Family Favorite

A Personal Moment That Started It All

I still remember the first time I made Keto Garlic Mushroom Chicken Casserole. It was one of those crisp fall evenings when the air smelled like rain and dry leaves, and all I wanted was something warm and satisfying—but easy. I had some chicken breasts thawing, a handful of mushrooms begging to be used, and a craving for a hearty, Low Carb Keto Dinner that wouldn’t derail my meal plan. On impulse, I tossed everything into a pan with garlic, cream, and cheese, slid it into the oven, and waited as the kitchen filled with the most incredible aroma.

When the Baked Chicken Recipe came out golden and bubbling, I knew it was special. My family gathered around the table, and the first bite drew a collective “Wow.” It was creamy yet light, full of flavor yet surprisingly guilt-free. The kids even asked for seconds, which, believe me, never happens with anything that has “keto” in the title! That moment sealed it—this Easy Chicken Dinner became part of our rotation, a weekly staple that satisfied both the Healthy Chicken Breast enthusiasts and the comfort food lovers in my house.

Beyond the taste, it symbolized something cozy and dependable—a meal that brought everyone together without the overwhelm of complex prep or endless dishes. And as the weather cooled, I found myself turning to it again and again for that same sense of comfort and warmth.

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Golden baked keto garlic mushroom chicken casserole in one pan with creamy sauce and herbs.

Keto Garlic Mushroom Chicken Casserole


  • Total Time: 1 hour
  • Yield: 4 servings 1x

Description

A creamy, one-pan casserole combining juicy chicken breasts, garlic, mushrooms, and cheese for a flavorful low-carb dinner. This easy recipe bakes in under an hour and fits perfectly into a ketogenic lifestyle.


Ingredients

Scale
  • 2 large boneless skinless chicken breasts (about 1 lb)
  • 2 tbsp olive oil or avocado oil
  • 4 cloves garlic, minced
  • 2 cups sliced baby bella or white mushrooms
  • 1 cup heavy cream
  • 1/2 cup chicken broth
  • 1 1/2 cups shredded mozzarella or provolone cheese
  • 1/4 cup grated Parmesan cheese
  • 1 tsp fresh thyme or Italian seasoning
  • salt and pepper to taste
  • 1 tbsp butter (optional)
  • 2 tbsp chopped fresh parsley (for garnish)

  • Instructions

    1. Preheat oven to 375°F (190°C) and grease a cast iron skillet or oven-safe dish.

    2. Pat chicken dry and season with salt, pepper and Italian seasoning.

    3. Heat oil in skillet over medium-high heat and sear chicken 3–4 minutes per side until golden. Remove and set aside.

    4. Reduce heat to medium, add butter and garlic; cook 30 seconds until fragrant.

    5. Add mushrooms and cook 5–6 minutes until browned.

    6. Pour in chicken broth and heavy cream, whisking to combine; simmer 2–3 minutes until slightly thickened.

    7. Stir in half of the mozzarella and all Parmesan cheese, then taste and adjust seasoning.

    8. Nestle chicken into sauce, spoon mushrooms over top, and sprinkle remaining mozzarella.

    9. Bake uncovered 20–25 minutes until chicken reaches 165°F (74°C) and cheese is golden.

    10. Let rest 5 minutes, garnish with parsley and serve.

    • Prep Time: 15 minutes
    • Cook Time: 45 minutes
    • Category: dinner
    • Method: baking
    • Cuisine: american

    Nutrition

    • Serving Size: 1 serving
    • Calories: 420
    • Sugar: 2
    • Sodium: 500
    • Fat: 28
    • Saturated Fat: 14
    • Unsaturated Fat: 12
    • Trans Fat: 0
    • Carbohydrates: 5
    • Fiber: 2
    • Protein: 36
    • Cholesterol: 120

    Keywords: keto, low carb, chicken casserole, garlic mushrooms, one pan dinner, easy dinner, healthy chicken, keto dinner, clean eating

    Why One-Pan Meals Are a Game Changer for Busy Nights

    The magic of one-pan meals is undeniable. When life is filled with appointments, work deadlines, and school chaos, the last thing anyone needs is a mountain of dishes. That’s where the Keto Garlic Mushroom Chicken Casserole shines. It simplifies everything—cooking, cleaning, and even portioning. You simply prep in one skillet, bake in the same dish, and serve straight to the table. Dinner gets done in under an hour, and cleanup takes minutes.

    But beyond convenience, one-pan meals like this are a secret weapon for healthy living. The combination of lean Healthy Chicken Breast, fiber-rich mushrooms, and creamy garlic sauce delivers everything you need in one balanced dish—lots of protein, good fats, and minimal carbs. It’s the definition of an effortless Low Carb Keto Dinner that still feels indulgent. Plus, the consistency of textures—the slight crunch at the edge of the cheese, the juicy chicken center, and silky sauce—keeps every bite interesting.

    If you’ve been following Clean Eating Recipes or experimenting with Somersize Recipes, this casserole fits right in. It’s flexible enough for multiple diet styles and satisfying enough for the entire family, whether keto or not. What really makes this meal a game changer, though, is how it supports your lifestyle—it saves time, fuels your body, and brings comfort back to the dinner table. For busy nights when energy is low but the craving for a wholesome home-cooked meal is real, this one-pan wonder delivers every single time.

    Ingredients, Tools, and Step-by-Step Cooking Guide

    Ingredients List and Keto-Friendly Swaps

    To bring the Keto Garlic Mushroom Chicken Casserole to life, you’ll only need a handful of pantry staples and simple tools. Every ingredient contributes to keeping this dish low in carbs, moderate in protein, and rich in healthy fats—the perfect balance for a Low Carb Keto Dinner. Below is a simple breakdown to help you prep with confidence.

    IngredientMeasurementKeto Purpose / Notes
    Boneless, skinless chicken breasts2 large (about 1 lb)A lean Healthy Chicken Breast source of protein that becomes tender and flavorful when baked.
    Olive oil or avocado oil2 tbspAdds healthy fats for energy and helps sear chicken for a golden crust.
    Fresh garlic, minced4 clovesInfuses deep, savory flavor essential for the “garlic” in Keto Garlic Mushroom Chicken Casserole.
    Baby bella or white mushrooms, sliced2 cupsLow in carbs, high in texture and umami flavor; keeps the dish hearty and wholesome.
    Heavy cream1 cupProvides richness and smooth texture; staple in keto cooking for satisfying fat content.
    Chicken broth½ cupHelps create a silky sauce base without adding extra carbs.
    Shredded mozzarella or provolone cheese1½ cupsMelts beautifully to form the casserole’s golden top layer.
    Grated Parmesan cheese¼ cupBoosts flavor with minimal carbs; adds a nutty depth to the sauce.
    Fresh thyme or Italian seasoning1 tspHerbal balance to the creamy profile; enhances aroma.
    Salt & pepperTo tasteEssential seasonings to round out every layer of flavor.
    Butter (optional)1 tbspDeepens the richness if you prefer a creamier sauce.
    Fresh parsley (for garnish)2 tbsp choppedAdds brightness and visual appeal right before serving.

    Keto-Friendly Swaps & Add-ons:

    • Replace heavy cream with coconut cream for a dairy-free version.
    • Use chicken thighs instead of breasts for higher fat content.
    • Add almond flour dusting before searing for a crispier crust.
    • Serve over cauliflower rice or zucchini noodles for a full meal.
    • Mix in spinach or kale for extra fiber and color while keeping it keto.

    Step-by-Step Preparation

    This recipe keeps things simple—everything happens in one pan. Follow these steps for a perfectly baked Keto Garlic Mushroom Chicken Casserole.

    Recommended Tools: Cast iron skillet or oven-safe pan, casserole dish, sharp knife, whisk, tongs.

    1. Preheat and Prep: Preheat oven to 375°F (190°C). Grease the skillet with olive oil or butter. Pat the Healthy Chicken Breasts dry, season with salt, pepper, and herbs.
    2. Sear the Chicken: Heat oil over medium-high heat. Sear chicken 3–4 minutes per side until lightly browned. Remove and set aside.
    3. Sauté Garlic and Mushrooms: In the same pan, melt butter, stir in garlic until fragrant, add mushrooms, cook 5–6 minutes until browned.
    4. Create the Sauce: Add broth and cream, whisking as it simmers 2–3 minutes to thicken. Stir in cheeses, taste, and season.
    5. Combine and Bake: Nestle chicken in the sauce, top with mushrooms and cheese. Bake 20–25 minutes until golden and bubbling.
    6. Garnish and Serve: Rest 5 minutes before serving. Sprinkle parsley or Parmesan on top.

    Expert Tip: For a thicker sauce, remove the chicken after baking and simmer the sauce for a few extra minutes before plating. Perfect over cauliflower rice or roasted veggies.

    Nutrition, Flavor, and Serving Ideas

    Nutritional Benefits and Keto Macros

    The Keto Garlic Mushroom Chicken Casserole isn’t just delicious—it’s nutritionally balanced and fully keto-approved. Here’s the breakdown per serving (4 servings total):

    NutrientAmount per ServingKeto Insight
    Calories~420 kcalModerate energy with high fat and protein.
    Fat28gFrom healthy oils, cheese, and cream—satiating fats.
    Protein36gFrom lean Healthy Chicken Breast, ideal for muscle maintenance.
    Total Carbohydrates5gMostly from mushrooms and dairy.
    Net Carbohydrates3gPerfect for a Low Carb Keto Dinner.
    Fiber2gAids digestion while keeping carbs low.

    This dish provides essential nutrients—potassium, calcium, and B vitamins—while hitting ideal keto ratios. Each portion keeps hunger at bay for hours, making it great for meal prep or fasting schedules. Serve it with vegetables or adjust cream and cheese amounts to fit your macros perfectly.

    Flavor Boosts and Serving Suggestions

    The beauty of the Keto Garlic Mushroom Chicken Casserole lies in its versatility. You can tweak flavors while keeping it keto-friendly and aligned with Clean Eating Recipes.

    • Herbs & Spices: Try rosemary, basil, or red pepper flakes for kicks of freshness and heat.
    • Cheese Swaps: Blend mozzarella with cheddar or gouda; add cream cheese for extra richness.
    • Veggie Add-ins: Toss in spinach, asparagus, or zucchini for added texture.
    • Crispy Topping: Use crushed pork rinds or almond flour for a golden crust without breadcrumbs.

    Serving Ideas: Pair with roasted broccoli, cauliflower rice, zucchini noodles, or a crisp green salad. For an elegant touch, serve in ramekins or straight from the skillet for cozy family vibes.

    FAQs and Final Thoughts

    Frequently Asked Questions

    Can I freeze Keto Garlic Mushroom Chicken Casserole?
    Yes! Cool completely before freezing in airtight containers for up to 2 months. Reheat at 350°F (175°C) for 15–20 minutes until bubbly.

    How long does it keep in the fridge?
    Store leftovers in an airtight container for 3–4 days. Reheat with a splash of cream or broth to regain its silky texture.

    Can I use chicken thighs instead of breasts?
    Absolutely. Thighs are juicier and perfectly keto-friendly. Bake until they reach 165°F (74°C).

    Is this dish suitable for Somersize or low-carb plans?
    Yes, it’s sugar-free, grain-free, and made with whole, clean ingredients. Perfect for Somersize Recipes or Clean Eating Recipes.

    What can I substitute for heavy cream?
    Use coconut cream for dairy-free or combine cream cheese with almond milk for a tangy alternative. Simmer longer to thicken if needed.

    Why This Casserole Belongs on Your Table

    The Keto Garlic Mushroom Chicken Casserole combines comfort and nutrition in one one-pan masterpiece. From its first golden-baked appearance to the last creamy bite, it’s the definition of a Low Carb Dinner Delight. Easy to prepare, minimal to clean, and universally loved, it’s the kind of recipe that fits every lifestyle and appetite.

    This One Pan Keto Dinner is more than just a meal—it’s a cozy tradition and a seamless fit for your wellness goals. Each time I bake it, I’m reminded that healthy food can be indulgent, family-friendly, and completely satisfying. When you need a go-to recipe that works any night of the week, make this your next favorite. Serve it with love, share it proudly, and enjoy every creamy, garlicky bite.

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