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Creamy keto chicken casserole

Published: Oct 23, 2025 by Linda · This post may contain affiliate links ·

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Savor the Crispy Delights of Long John Silver's Style Fish Fillets

Embark on a flavor voyage with this Long John Silver's style fish batter recipe, merging the golden crispiness of deep-fried fish with a delectable homemade touch.

Whether it's a laid-back family dinner or a lively weekend gathering, this dish transports the iconic taste of the popular fast-food chain right to your dining table.

Ideal for an enjoyable evening or a joyous event, this recipe encapsulates the essence of that beloved fish fry experience. Ready to elevate your mealtime with a splash of fun and flavor? Let's dive into this straightforward and utterly rewarding recipe.

Flavorful and Creamy: Your New Go-To Creamy Keto Chicken Casserole

This time, we’re channeling that same cozy, comfort-food spirit into a creamy keto chicken casserole that’s rich, low-carb, and weeknight-friendly. Because it bakes into a velvety sauce around tender chicken and mushrooms, every bite feels indulgent yet balanced. However, the method stays simple, and the flavors stay bright thanks to lemon and nutmeg. If you enjoy creamy chicken dinners, you might also love this silky bake for inspiration: How to Make Creamy Chicken Bake.

Here’s how you can achieve that luscious, oven-kissed finish and the signature comfort everyone craves, complete with professional tips to ensure your creamy keto chicken casserole turns out wonderfully every single time.

Pro Tips for the Perfect Creamy Keto Chicken Casserole:

  1. Season in layers: First, season the chicken well; then, season the sauce as it simmers. Consequently, flavors bloom instead of getting muted.
  2. Brown = flavor: Sear the chicken until golden for fond on the pan. Then, deglaze with broth to pull all that savory depth into the sauce.
  3. Mind the liquid: Because mushrooms release moisture, simmer the cream and broth briefly to a lightly thickened consistency before baking.
  4. Keep it keto-friendly: Use full-fat cream and real Parmesan for better texture. Additionally, avoid thickeners that add carbs.
  5. Balance with acidity: A little lemon lifts the richness, so the casserole tastes creamy, not heavy.
  6. Bake covered, finish uncovered (optional): For extra color, uncover during the last 5 minutes. Alternatively, broil briefly while watching closely. For another cozy chicken bake idea, see Paula Deen’s Amazing Chicken Casserole.
  7. Rest before serving: Let the creamy keto chicken casserole sit 5 minutes so juices settle and the sauce clings to every piece.

Creamy Keto Chicken Casserole Recipe:

  • Preparation time: 10 minutes
  • Cooking time: 30 minutes
  • Servings: 4
  • Equipment: Large skillet, 26 x 17 x 7 cm / 10 x 7 x 3 in casserole dish, sharp knife, cutting board, foil

With this creamy keto chicken casserole, your kitchen becomes a haven of baked comfort, echoing the soothing flavors everyone asks for again and again.

Ingredients:

  • 770 g / 27 oz chicken breast, tenders, or thighs (skinless)
  • Salt, to taste
  • 1 teaspoon ground paprika
  • Pepper, to taste
  • 80 g / 2.8 oz onion, chopped
  • ¼ teaspoon garlic (minced or powder)
  • 500 g / 17.6 oz mushrooms, halved
  • 1 cup / 220 ml heavy whipping cream
  • ½ cup Parmesan cheese, finely grated (about 50 g / 1.76 oz; ¼ cup for chicken, ¼ cup for sauce)
  • 1 cup / 220 ml chicken broth or water
  • 2 tablespoon lemon juice
  • ¼ teaspoon ground nutmeg
  • 1 tablespoon parsley, chopped (for garnish)
  • Olive oil, for sautéing

Optional serving ideas for non-keto guests: a buttery side like this melty, family-style favorite pairs beautifully—peek at the cheesy approach here: Cheesy Chicken Casserole.

Directions:

  1. Season the chicken: Pat dry. Then season both sides with salt, pepper, and paprika; sprinkle ¼ cup Parmesan over both sides to create a light coating.
  2. Sear for flavor: Heat a slick of olive oil in a large skillet over medium-high. Sauté the chicken until golden on both sides; remove to a plate. Because color equals flavor, don’t rush this step.
  3. Build the aromatic base: In the same skillet, add a little more oil if needed. Sauté the chopped onion and garlic until fragrant and lightly caramelized.
  4. Cook the mushrooms: Add halved mushrooms with a pinch of salt. Then cook, stirring, until they release moisture and edges turn golden.
  5. Create the creamy sauce: Pour in heavy cream and broth (or water). Add lemon juice, nutmeg, and the remaining ¼ cup Parmesan. Stir, then simmer 2–3 minutes until slightly thickened.
  6. Taste and adjust: Because seasoning matters, taste the sauce and adjust salt, pepper, or lemon to balance richness.
  7. Assemble the casserole: Transfer the seared chicken to a 26 x 17 x 7 cm / 10 x 7 x 3 in casserole dish. Next, pour the mushroom-cream sauce over the chicken, nestling pieces so everything is coated. If easy skillet-to-oven chicken is your vibe too, try the elegant, pan-finished style of Chicken Lombardy.
  8. Bake covered: Cover tightly with foil and bake at 175°C / 350°F for 30 minutes, until the chicken is cooked through and the sauce is bubbling.
  9. Finish and garnish: Uncover for the last 5 minutes if you want light browning. Then rest 5 minutes. Garnish with chopped parsley before serving. On nights when you need set-and-forget comfort, you might enjoy this saucy option: Slow Cooker Chicken Enchilada Casserole.
  10. Enjoy! Serve your creamy keto chicken casserole with a crisp green salad or buttery mashed cauliflower. Because the sauce is velvety, it hugs every bite.

Ready to Relish!

This dish offers a fabulous taste experience and brings the joy of a comforting bake into the heart of your home. Moreover, the creamy keto chicken casserole shines for meal prep; leftovers reheat beautifully and keep the chicken tender. Additionally, the lemon and nutmeg keep flavors alive, so every plate feels fresh, not heavy. For another crowd-pleasing chicken bake that your family might request on repeat, peek at this hearty spin: Chicken Bacon Ranch Casserole with Potatoes.

Because the technique is straightforward, you’ll master it quickly. Then you can riff with add-ins like spinach or chopped zucchini while staying low-carb. Finally, share the creamy keto chicken casserole at gatherings; it travels well, and it’s the kind of cozy main that always disappears first.

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Creamy keto chicken casserole

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With this creamy keto chicken casserole, your kitchen becomes a haven of baked comfort, echoing the soothing flavors everyone asks for again and again.

  • Total Time: 40 minutes
  • Yield: 4 1x

Ingredients

Scale
  • 770 g / 27 oz chicken breast, tenders, or thighs (skinless)

  • Salt, to taste

  • 1 tsp ground paprika

  • Pepper, to taste

  • 80 g / 2.8 oz onion, chopped

  • ¼ tsp garlic (minced or powder)

  • 500 g / 17.6 oz mushrooms, halved

  • 1 cup / 220 ml heavy whipping cream

  • ½ cup Parmesan cheese, finely grated (about 50 g / 1.76 oz; ¼ cup for chicken, ¼ cup for sauce)

  • 1 cup / 220 ml chicken broth or water

  • 2 Tbsp lemon juice

  • ¼ tsp ground nutmeg

  • 1 Tbsp parsley, chopped (for garnish

Instructions

  • Season the chicken: Pat dry. Then season both sides with salt, pepper, and paprika; sprinkle ¼ cup Parmesan over both sides to create a light coating.

  • Sear for flavor: Heat a slick of olive oil in a large skillet over medium-high. Sauté the chicken until golden on both sides; remove to a plate. Because color equals flavor, don’t rush this step.

  • Build the aromatic base: In the same skillet, add a little more oil if needed. Sauté the chopped onion and garlic until fragrant and lightly caramelized.

  • Cook the mushrooms: Add halved mushrooms with a pinch of salt. Then cook, stirring, until they release moisture and edges turn golden.

  • Create the creamy sauce: Pour in heavy cream and broth (or water). Add lemon juice, nutmeg, and the remaining ¼ cup Parmesan. Stir, then simmer 2–3 minutes until slightly thickened.

  • Taste and adjust: Because seasoning matters, taste the sauce and adjust salt, pepper, or lemon to balance richness.

  • Assemble the casserole: Transfer the seared chicken to a 26 x 17 x 7 cm / 10 x 7 x 3 in casserole dish. Next, pour the mushroom-cream sauce over the chicken, nestling pieces so everything is coated. If easy skillet-to-oven chicken is your vibe too, try the elegant, pan-finished style of Chicken Lombardy.

  • Bake covered: Cover tightly with foil and bake at 175°C / 350°F for 30 minutes, until the chicken is cooked through and the sauce is bubbling.

  • Finish and garnish: Uncover for the last 5 minutes if you want light browning. Then rest 5 minutes. Garnish with chopped parsley before serving. On nights when you need set-and-forget comfort, you might enjoy this saucy option: Slow Cooker Chicken Enchilada Casserole.

 

  • Enjoy! Serve your creamy keto chicken casserole with a crisp green salad or buttery mashed cauliflower. Because the sauce is velvety, it hugs every bite.

  • Author: Linda
  • Prep Time: 10 minutes
  • Cook Time: 30 minutes

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Linda Cooking

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Hi, I’m Linda! I love cooking simple, yummy meals that make people smile. On my blog, you’ll find easy recipes made with love for family and friends.

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