Mushroom and Spinach Stuffed Chicken Breast

Easy Stuffed Chicken Breasts with mushroom, spinach and feta cheese is an incredibly easy way of changing up your chicken dinner routine. Serve it up with your favorite side dishes for an unforgettable meal.

Mushroom and Spinach Stuffed Chicken Breast is delightfully flavorful and easy to make for a delicious dinner!

I get so used to eating the same meals all the time throughout the week that before I know it, I’m burned out on something I used to love. Chicken is a perfect example of that. It’s so enjoyable in most forms but unless I change it up from time to time, my formerly emphatic feelings turn lackluster. 

Well, my friends, stuffed chicken puts an end to chicken fatigue!

A marvelous solution to becoming bored with healthy food? Dress it up in a new outfit!

Given how much chicken I eat on a regular basis, I’m fairly shocked it has taken me until now to…well…stuff it.

Last year, I shared my 4-Ingredient Mediterranean Stuffed Salmon recipe, which has been popular ever since. Recently it dawned on me that taking the same approach and making an easy stuffed chicken recipe would be a major To Do.

While stuffed chicken gives off that fancy, pretentious vibe, It’s actually incredibly easy. Stuffed chicken is rustic, down to earth simple, magically flavorful, and easy to whip up any night of the week.

It’s also fabulous for meal prep, as it actually saves and reheats super well! For those of you who like to make extra for leftovers, you’ll absolutely love this lovely little changeup to the chicken dinner ush. 

I know the burning question on your mind, and don’t worry…I have an answer for you.

Easy Stuffed Chicken with mushrooms, spinach, onion and feta. A quick, easy healthy keto dinner recipe

Does Stuffed Chicken Turn Out Dry?:

Remarkably, no! In fact, it’s very tender!

I’ve had it in my head that stuffed chicken breasts would turn out dry, just like stuffed turkey, but such is not the case. Both the filling and the chicken stay nice and moist and they work in harmony to give each other flavor.

Let’s dissect the ingredients…you’ll love how straightforward this is!

Ingredients for Stuffed Chicken:

For the Chicken: Boneless skinless chicken breasts, avocado oil, sea salt, paprika, garlic powder, and black pepper. The avocado oil is used to lubricate the chicken and keep it moist during the baking process and the seasonings simply add flavor to the meat.

The recipe calls for 4 large boneless chicken breasts, but you can scale this amount up or down depending on how many people you’re serving and how many leftovers you want. Just be sure to adjust the amount of filling accordingly.

For the Stuffing: Onions, mushrooms, spinach, garlic powder, feta cheese. This incredibly simple lineup of ingredients results in rustic, tangy, creamy flavor such that when you cut into the chicken, you’re rewarded with the perfect bite.

Many recipes I saw prior to making this one call for cream cheese. While this sounds absolutely fabulous, I try to keep my weeknight meals a little lighter. For this reason, using feta cheese not only provides that same tangy flavor but it also generates a healthy meal without being overly heavy or decadent.

Let’s make it!

Quick and easy Stuffed Chicken Breast with mushrooms, spinach and feta. A delicious, healthy dinner recipe

How to Make Stuffed Chicken Breasts:

Add 1 tablespoon of avocado oil to a large non-stick skillet and heat to medium-high. Add the onion and stir well. Sauté until the onion is very fragrant and begins to soften, about 3 to 5 minutes.

Sauté the onion in a skillet

Add the chopped mushrooms and stir well. Cover the skillet with a lid and allow the onion and mushrooms to cook until the mushrooms begin to leach liquid, about 5 minutes. 

Remove the lid and stir in the garlic and spinach. Cook, stirring constantly until the spinach has wilted. Stir in the feta cheese until combined.

Chicken stuffing mixture in a skillet - mushrooms, onion, spinach and feta cheese

Preheat the oven to 375 degrees F.

Place the chicken breasts on a cutting board and use a sharp knife to carefully cut a slit (or “pocket”) into each breast.

How to cut chicken breast to make stuffed chicken

Transfer the chicken breasts to an oiled or sprayed large casserole dish.

Drizzle each chicken breast with avocado oil, then sprinkle liberally with sea salt, paprika, garlic powder, and black pepper. Drizzle the chicken breasts again with a small amount of avocado oil and use your hands to spread around the oil and seasonings over the breasts – this will prevent the seasonings from burning and will ensure the breasts stay nice and moist.

Chicken breast seasoned with salt paprika and garlic powder

Scoop the stuffing into each chicken breast, filling them up to your heart’s desire. 

Stuff the mixture into the chicken breasts

If you have them, use toothpicks to secure the filling into the chicken breasts (no worries if you don’t have them).

Bake for 30 to 35 minutes, or until the chicken breasts are completely cooked through.

Mushroom and Spinach Stuffed Chicken Breast with feta cheese makes a flavorful healthy dinner recipe

Serve with your choice of sides and enjoy!

I served up the mushroom and spinach stuffed chicken with my go-to Stir Fry Vegetables. In addition, my Crowd-Pleasing Roasted Vegetables or Italian Pasta Salad would be amazing sidekicks! 

How Long To Cook Stuffed Chicken Breast:

At 375 degrees Fahrenheit, baked stuffed chicken for 30 to 35 minutes, or until the chicken reaches an internal temperature of 165 degrees F. 

Chicken breasts vary in thickness, which will make it impossible to know the exact bake time, which is why using a meat thermometer is always the best way of ensuring you’re getting the perfect result with the perfect doneness.

If you love chicken, be sure to check out my 45 Must-Make Chicken Recipes

Stuff it like you mean it!

Ingredients

Chicken:

  • 1 Tbsp avocado oil
  • 4 large boneless skinless chicken breasts
  • 1 tsp Sea salt
  • 1/2 tsp Paprika
  • 1/2 tsp Garlic Powder
  • ¼ tsp black pepper

Mushroom Stuffing:

  • 1 Tbsp avocado oil
  • 1 medium-sized onion, finely chopped
  • 16 ounces mushrooms, chopped
  • 3 cloves garlic, minced
  • 5 ounces baby spinach
  • 6 ounces feta cheese
  • ¼ tsp sea salt, to taste

Instructions

  1. Add 1 tablespoon of avocado oil to a large non-stick skillet and heat to medium-high. Add the onion and stir well. Saute until the onion is very fragrant and begins to soften, about 3 to 5 minutes.
  2. Add the chopped mushrooms and stir well. Cover the skillet with a lid and allow the onion and mushrooms to cook until the mushrooms begin to leach liquid, about 5 minutes. 
  3. Remove the lid and stir in the garlic and spinach. Cook, stirring constantly until the spinach has wilted. Stir in the feta cheese until combined.
  4. Preheat the oven to 375 degrees F.
  5. Place the chicken breasts on a cutting board and use a sharp knife to carefully cut a slit (or “pocket”) into each breast.
  6. Transfer the chicken breasts to an oiled or sprayed large casserole dish.
  7. Drizzle each chicken breast with avocado oil, then sprinkle liberally with sea salt, paprika, garlic powder, and black pepper. Drizzle the chicken breasts again with a small amount of avocado oil and use your hands to spread around the oil and seasonings over the breasts.
  8. Scoop the stuffing into each chicken breast, filling them up to your heart’s desire. 
  9. If you have them, use toothpicks to secure the filling into the chicken breasts (no worries if you don’t have them).
  10. Bake for 30 to 35 minutes, or until the chicken breasts are completely cooked through.
  11. Serve with your choice of sides and enjoy!

Nutrition Information

Yield 4

Serving Size 1 of 4


Amount Per Serving

Calories 399Total Fat 15gCarbohydrates 10gNet Carbohydrates 7gFiber 3gSugar 3gProtein 61g

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Enjoy!

xo

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Mushroom and Spinach Stuffed Chicken Breast