Spinach Stuffed Chicken Breast
by Sommer Collier — last updated on Apr 22, 2026 
When I’m craving something hearty but still balanced, I make this Spinach Stuffed Chicken Breast recipe. I fill juicy chicken with spinach, roasted peppers, and creamy fontina cheese, then bake it until tender and golden. It’s an easy, low-carb dinner that feels indulgent without being heavy.
Chicken is one of those proteins that we eat pretty often in my household. But let’s be honest, the same old chicken recipes can get pretty boring (and bland) when you’re eating them over and over again. That’s why I’m so excited to share with you this spinach-stuffed chicken breast recipe that has totally changed the dinner game for my family and me! It’s indulgent but good-for-you and packed with veggies from sauteed spinach and roasted red peppers, to onions, and for a little surprise… Molten fontina cheese. It kind of tastes like a twist on my roasted red pepper chicken, but with a creamy filling. As you cut into each chicken breast, the hot cheesy center oozes out, inviting you back for another bite. It’s like a stuffing and a sauce, baked right in! Best of all, this dish is super simple to make.
Nicole – ⭐⭐⭐⭐⭐ Simple to prepare but had depth of flavor that made it hard to stop eating!
Table of Contents
Sommer’s Recipe Highlights
Great for Family Dinners – This chicken dish is the perfect addition to your weekly dinner rota. Not only is it restaurant-worthy delicious, like my jerk chicken thighs, but it’s also very quick and easy to make, and with just a few simple ingredients. This is truly a “winner winner chicken dinner”, in my humble opinion.
Balanced Comfort Food – I love how the combo of spices, vegetables, and of course, that cheese, totally transforms the chicken breast from bland to juicy. I feel good about serving it to my family because the stuffing is packed with veggie goodness. Every bite is indulgent and wholesome.
Melty Center – Now, that cheesy and creamy center is a serious reason to try this recipe. The molten spinach filling is rich and just irresistible, even for people who don’t typically eat their greens.
Key Ingredients and Tips
- Chicken breasts – I use large skinless and boneless chicken breasts, so there’s plenty of room for the stuffing.
- Fontina cheese – Now for that creamy center, I love to use fontina cheese. But there are so many other delicious and melty cheeses you can use instead! Just make sure that the cheese is shredded before you cook with it. Cheddar, Pepper jack, and Havarti are all good substitutions.
- Frozen spinach – I prefer to use frozen chopped spinach, thawed, so I can squeeze out all the moisture. Yet fresh baby spinach (chopped into small pieces) also works. However, you will need to sauté it first to release the moisture.
- Roasted red peppers – For that savory, bold punch, I use homemade roasted red peppers or store-bought jarred roasted peppers.
- Onion – For a boost of savoriness and aromas, I use shaved onion.
- Smoked paprika – Just a dash adds a ton of color and a kick of that signature smoky flavor.
How to Make
Find the full recipe with ingredient proportions, detailed instructions, and a video tutorial in the printable form at the bottom of the post.
Prep the chicken – The first thing I do is to lay the chicken breasts onto a parchment-lined baking sheet. Then, I cut a deep slit into each breast, into which I’ll place the stuffing. Just make sure not to cut the breast all the way through! Pro Tip: The cut should run parallel to the baking sheet, from tip to tip, like a pocket.
Make the stuffing – Then, I drain any excess water from the spinach. This takes some serious squeezing, but it’s an important step so the filling is thick and creamy, not watery. I then combine the pressed-dry spinach with the cheese, red peppers, garlic, onion, paprika, and just a dash of salt.
Stuff – I stuff each chicken breast with the vegetable-cheese combo. I pretty much just eyeball the amount of stuffing, so that it’s not too little but not too much for the size of each piece. Then, I drizzle some olive oil on top of each piece of chicken and sprinkle some more salt and pepper. Notice below, I rotate the breasts so the opening is facing up… This helps keep the filling in as they bake.
Bake – I pop the chicken into the oven and bake for about half an hour at 350 degrees Fahrenheit! Watch for crispy bits around the chicken and golden cheese on top.
Recipe Variations
- Cheese – Swap the fontina with any good melting cheese (think cheddar, mozzarella) or a creamy cheese like cream cheese, chevre, or even feta cheese.
- Extra heat – For a bit of added heat, add a pinch of cayenne pepper, or a sprinkle of crushed red pepper flakes on top.
- Sun-dried tomatoes – Replace the roasted red peppers with some chopped sun-dried tomatoes. Make sure to drain them well!
- Seasonings – I added garlic powder and paprika here, but other additional herbs/spices would be delicious, like thyme and basil, lemon pepper, or even Italian seasoning!
Serving Suggestions
This easy one-pan main dish is the perfect protein to serve with so many different sides! Try serving this stuffed chicken recipe with some of my personal favorites:
- Basmati rice or Roasted cauliflower rice
- Mashed potatoes or Duchess potatoes
- Steakhouse salad or Caesar salad
Storing
Store any leftover stuffed chicken breast in an airtight container in the refrigerator for up to 3 days. Reheat in the microwave and serve!
Frequently Asked Questions
The best method for stuffing chicken depends on the type of chicken you buy! If using bone-in chicken, I would suggest only stuffing fillings under the skin.
If you are using boneless skinless chicken breasts or thighs, like I do here, lay them flat on a cutting board. Then cut a pocket parallel to the cutting board, that remains connected on three sides.
Now you can either stuff the chicken and lock the fillings in, by closing the chicken with a toothpick. Or you can stuff the chicken and turn it upward, almost like a bowl, so the fillings are on top.
This second method is my favorite, because the filling is on display and the chicken can cook in a shorter amount of time!
As long as the chicken is fully thawed (not frozen) when you put it in the oven, 25 minutes at 350°F will guarantee it’s cooked through. Watch for light-brown crusting around the edges, and fully melted cheese on top that’s starting to create a crust. To check the internal temperature of the chicken, use a meat thermometer and press it deep into the center of the breast. Make sure it is cooked to 165°F!
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More Chicken Recipes
Spinach Stuffed Chicken Breast
Video
Ingredients
- 4 boneless chicken breasts (about 2 1/2 pounds total)
- 2 cups shredded fontina cheese (or gouda)
- 9 ounces frozen chopped spinach thawed
- 1/3 cup chopped roasted red pepper
- 2 tablespoons shaved onion
- 1 clove garlic minced
- 1/2 teaspoon smoked paprika
- 1 tablespoon olive oil
- Salt and pepper
Instructions
- Preheat the oven to 350 degree F. Line a rimmed baking sheet with parchment paper. Lay the chicken breasts flat on the baking sheet. Starting from one side, cut a deep slit (or pocket) into each chicken breast, parallel to the baking sheet, leaving three sides intact. Try to make the cut even so the attached edges are all about 1/2-inch thick.
- Squeeze as much moisture out of the thawed spinach as possible. Then, in a mixing bowl, combine the spinach, shredded cheese, red peppers, shaved onion, garlic, paprika, and 1/4 teaspoon salt. Stir well.
- Stuff the mixture evenly into the chicken breasts, turning them upright, so the stuffing is facing up. Drizzle each breast with olive oil and sprinkle generously with salt and pepper.
- Bake for 25 minutes, until the cheese is bubbly and the chicken is cooked through at the thickest point. Serve warm!
Simple to prepare but had depth of flavor that made it hard to stop eating!
I’ve made this twice now – once with fresh spinach and once with frozen. I highly recommend using fresh! It costs more, but it is worth it.
Also good to top with bacon crumbles.
I have what might be a silly question but with the one glove of garlic how do you mince it? Can you use minced dried garlic instead and if so what would be the measurement of dried minced garlic to equal one glove of minced garlic? What type of onion is best?
Hi Julie,
If using a fresh garlic clove, simply smash it on a cutting board with the flat edge of a knife, then chop it into very fine pieces. If using fresh minced garlic go with approximately 1 teaspoon. If using dried minced garlic use 1/2 teaspoon. :)
This sounds yummy. And seems easy for me, a not so great cook! Can you use mozzarella cheese instead? Can you use fresh spinach instead of frozen?
Hi Debbie,
Yes, to both questions. :)
However, you may need to steam the spinach to wilt it down so you can pack it into the chicken breasts.