Easy Low-Carb Chicken Spinach Mushroom Bake

July 27, 2025

This Easy Low-Carb Chicken Spinach Mushroom Bake is a tasty and simple dish! It’s loaded with juicy chicken, fresh spinach, and savory mushrooms, making it both hearty and healthy.

I love how this bake comes together in one dish, which means less cleanup for me! Plus, it’s a great way to sneak in those veggies while enjoying a warm and comforting meal. 🍽️

Key Ingredients & Substitutions

Chicken Breasts: Boneless and skinless chicken breasts are perfect for this recipe because they cook quickly and stay moist. If you’re looking for a change, try using thighs for extra flavor or even tofu for a vegetarian option!

Mushrooms: Fresh mushrooms add a hearty texture and earthy flavor. If you can’t find fresh mushrooms, canned mushrooms will work too. You can also substitute with zucchini or bell peppers for a different taste.

Spinach: Fresh spinach is best for this dish as it wilts nicely and mixes well with other ingredients. If you have frozen spinach, that can be used too; just make sure to drain the excess water beforehand!

Cheese: Mozzarella is a classic choice for that gooey texture. If you’re dairy-free, try nutritional yeast for a cheesy flavor or coconut cheese. Parmesan adds a nice salty kick, but you can skip it or replace it with a dairy-free option.

Heavy Cream: This is optional but gives a creamier sauce. You can substitute with almond milk for a lighter version or just skip it if you prefer a healthier bake!

How Do You Cook Chicken So It Stays Juicy in the Bake?

Keep your chicken juicy by searing it first! Searing not only adds flavor but also helps lock in moisture. Here’s how:

  • Make sure your pan is hot before adding the chicken. This creates a nice crust.
  • Don’t overcrowd the pan; let the chicken breathe to cook evenly.
  • Only cook until golden brown—about 5-6 minutes on each side is perfect. It will finish cooking in the oven.

Also, letting the dish rest after baking helps the juices redistribute. Serve it with a side salad for a complete meal!

Easy Low-Carb Chicken Spinach Mushroom Bake

Easy Low-Carb Chicken Spinach Mushroom Bake

Ingredients:

  • 4 boneless, skinless chicken breasts
  • Salt and black pepper, to taste
  • 2 tbsp olive oil or butter
  • 8 oz fresh mushrooms, sliced
  • 3 cups fresh spinach leaves
  • 2 cloves garlic, minced
  • 1 cup shredded mozzarella cheese (or a blend of mozzarella and cheddar)
  • 1/2 cup grated Parmesan cheese
  • 1/2 cup heavy cream or cream cheese (optional, for extra creaminess)
  • 1 tsp dried Italian seasoning or a mix of dried basil, oregano, and thyme
  • 1/4 tsp red pepper flakes (optional)
  • Fresh parsley or basil for garnish (optional)

Time Needed:

This dish will take about 10 minutes to prep and 25-30 minutes to cook, so you can have it on the table in about 40 minutes total! With minimal hands-on time, it’s perfect for a busy weekday dinner or meal prep!

Step-by-Step Instructions:

1. Preheat the Oven:

Begin by preheating your oven to 375°F (190°C) so it’s hot and ready when you’re done preparing the dish.

2. Prepare the Chicken:

Season both sides of the chicken breasts with salt, black pepper, and half of the Italian seasoning. This adds flavor to the chicken right from the start!

3. Sear the Chicken:

In a large skillet, heat the olive oil or butter over medium-high heat. Carefully add the seasoned chicken breasts to the skillet. Cook for about 5-6 minutes on each side until they are golden brown. They don’t need to be fully cooked at this stage, as they will finish baking in the oven. Once done, remove the chicken from the skillet and set them aside.

4. Cook the Vegetables:

In the same skillet, add the sliced mushrooms and cook until they start to brown and release their moisture, which should take about 5 minutes. Then, stir in the minced garlic and sauté for another minute until it’s nice and fragrant.

5. Add the Spinach:

Next, add in the fresh spinach and cook until just wilted, about 2-3 minutes. This will bring tons of nutrients and flavor to your bake! Once wilted, remove the skillet from heat.

6. Make it Creamy (Optional):

If you’d like a creamier texture, stir in the heavy cream or cream cheese with the mushroom-spinach mixture to create a delicious sauce.

7. Assemble the Bake:

Place the seared chicken breasts in a baking dish. Spoon the savory spinach and mushroom mix evenly over the chicken. Don’t be shy—get every bit of that goodness on there!

8. Add the Cheeses:

Sprinkle the shredded mozzarella cheese and grated Parmesan cheese evenly over the top. This will melt into a delicious, gooey topping!

9. Bake:

Pop your casserole into the preheated oven and bake for about 20-25 minutes. You’ll know it’s done when the chicken has reached an internal temperature of 165°F (74°C) and the cheese is bubbly and golden.

10. Let it Rest:

Once out of the oven, allow the bake to rest for a few minutes. This makes it easier to serve and allows flavors to meld together.

11. Garnish and Serve:

Finally, garnish with fresh parsley or basil if desired. Serve warm and enjoy your tasty low-carb chicken bake!

This dish pairs wonderfully with a simple green salad or some steamed low-carb vegetables. Bon appétit!

Easy Low-Carb Chicken Spinach Mushroom Bake

Frequently Asked Questions (FAQ)

Can I Substitute Chicken with Another Protein?

Absolutely! You can use boneless turkey breasts or thighs as a substitute. For a vegetarian option, consider using firm tofu or tempeh for a protein-packed alternative. Just adjust the cooking time as needed to ensure everything is cooked through.

Can I Use Frozen Spinach Instead of Fresh?

Yes, you can use frozen spinach! Just make sure to thaw it completely and remove any excess moisture before adding it to the dish. This prevents excess water from making the sauce watery.

How Do I Store Leftovers?

Store any leftovers in an airtight container in the refrigerator for up to 3 days. To reheat, simply warm it up in the microwave or in the oven until heated through. If it seems dry, add a splash of broth or cream to keep it moist.

Can I Make This Recipe Ahead of Time?

Yes! You can prepare the recipe up to the baking stage, cover it, and store it in the refrigerator for up to 24 hours. When ready to cook, just pop it directly into the oven, adding a few extra minutes to the baking time to heat through completely.

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