Keto Tuscan Chicken Casserole
This Keto Tuscan Chicken Casserole Recipe with creamy sun-dried tomato sauce on top of tender chicken and covered with provolone is incredible. You would never know how easy this is or that it has fewer than 10 ingredients.
This creamy Keto Tuscan Chicken Casserole is amazing. I enjoy my recipes (or I wouldn’t share them), but this was over-the-top good. I would serve it for dinner company I wanted to impress any day of the week.
One of my favorite things ever is the sun-dried tomato sauce at Olive Garden. In my vegetarian days, I loved the portobello mushroom ravioli there. I would dip my breadsticks in the sauce and sigh in satisfaction. I just had to make a low carb option with the same flavors. This is even better and quickly became a family favorite.
The sun-dried tomato sauce was always the best part of that dish, and it is the best part of my Keto Tuscan Chicken Casserole as well. Sometimes I make extra and mix it into steamed broccoli florets or cauliflower rice.
If you love this recipe, make sure to check out my Tuscan Stuffed Mushrooms next!
Want a skillet version of this recipe? Try adding spinach to my Sun Dried Tomato Pesto Chicken.
Ingredients
- Chicken tenderloins – Chicken tenderloins are the best value for money. You don’t have to worry about them having a strange texture like many chicken breasts in stores nowadays. They’re low in fat and high in protein, so they make a great addition to any diet.
- Sun-dried tomatoes – Sliced or chopped sun-dried tomatoes are tasty, flavorful, and they look great as a garnish for salads, appetizers, and main dishes.
- Cream cheese – Cream cheese is an American dairy product. It’s usually made from milk and cream, but can also be made with non-dairy milk. In the United States, it’s used in a variety of recipes ranging from baked goods to main courses
- Fresh basil leaves – Fresh basil leaves are an excellent seasoning for chicken, salads, pizza, and vegetables. They are one herb that I always recommend buying fresh instead of dried.
- Garlic powder – If you’re looking for a spice that’s got the best taste, the most unique flavor, and aroma, look no further than roasted garlic powder. It is has a more intense flavor than regular garlic powder.I use it in almost every savory recipe I make.
- Baby spinach – A common mistake is thinking that baby spinach and mature spinach are the same things. The biggest difference between baby spinach and mature spinach is that baby spinach leaves are smaller and lighter in color. They cook faster and are more tender.
- Provolone cheese – Provolone cheese is a solid choice for keto Tuscan chicken. It adds the perfect amount of flavor to your dishes, and it’s delicious by itself too!
How to Make Keto Tuscan Chicken
1️⃣ Bake the Chicken
Bake the chicken tenderloins and drain any excess cooking liquid.
2️⃣ Make the Sauce
Stir together the ingredients for the sundried tomato cream sauce in a medium bowl. Season to taste with salt and pepper.
3️⃣ Add Sauce & Cheese
Pour the sundried tomato sauce on the chicken and spread it evenly. Top with the cheese.
4️⃣ Bake the Casserole
Bake in the preheated oven until hot, bubbly, and golden brown.
Storage
Put leftovers in an airtight container and refrigerate for up to 4-5 days. You can freeze this for longer storage. Just cook the chicken, add the sauce, spinach, and cheese and place into the freezer at that point. Thaw overnight and then bake.
Variations
- Chicken – I make this with fresh chicken tenders, but you can use chicken breasts or even chicken thighs. You can even use leftover cooked chicken or rotisserie chicken.
- Shrimp – This sauce is also amazing on shrimp. Just lightly saute it in a large skillet and add the sauce and spinach right to the pan!
- Bacon – Go ahead and mix in some chopped bacon.
- Spices – Add your favorite Italian herb blend, onion powder, paprika, or crushed red pepper for a bit of heat. You can also sprinkle on a little Italian seasoning at the end for a visual appeal.
- Sauce – For a thinner sauce, either don’t drain the cooking liquid or add some chicken broth or heavy cream.
- Cheese – Swap in mild cheddar or mozzarella cheese for the provolone. You can also mix some Parmesan cheese into the sauce for a boost of flavor.
- Creamy Garlic Sauce – You can swap out the sundried tomatoes for roasted garlic cloves for an amazing sauce that is great on chicken, zucchini noodles, or even salmon.
Common Questions
Can I prepare this ahead of time?
Once the casserole is prepared you can wait to bake it. I prepped it in the early afternoon, put it in the fridge, and then baked it right before dinner. You will need to increase the final baking time if it is cold when you put it in the oven.
Can I use frozen chicken?
Yes. Just cook the chicken, drain the liquid, and then add the sun-dried tomato sauce, spinach, and cheese.
Can I use leftover cooked chicken?
You can also just make this keto creamy Tuscan chicken recipe with leftover cubed or shredded chicken or thinly sliced chicken breasts. Just proceed with the sauce recipe and adjust the cooking time as needed. If you have extra chicken try this Keto Chicken and Rice Casserole next.
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Keto Tuscan Chicken Casserole
Ingredients
- 3 lb chicken tenders
- 2 tbsp sun-dried tomatoes
- 3 tbsp warm water
- 12 fresh basil leaves
- 8 oz cream cheese
- 1 tsp roasted or regular garlic powder
- 1/2 tsp salt
- 3 oz cooking liquid from the chicken or chicken stock
- 5 oz fresh baby spinach
- 12 slices provolone cheese
Instructions
- Preheat oven to 350.
- Cook the chicken tenders until cooked through. I cook mine in a covered casserole dish for 30 minutes at 350. Reserve 3 oz of the cooking liquid and drain the rest.
- In a small blender or food processor puree the sun-dried tomatoes and warm water until they are pureed. Add the basil and process until it is chopped.
- In a medium bowl mix the sun-dried tomato puree, cream cheese, garlic powder, salt, and cooking liquid or chicken stock. Once it is pretty smooth, mix in the spinach.
- Spread the sauce on top of the chicken tenders. Top with the provolone cheese. Bake for an additional 15 minutes or until the cheese is bubbly.
Notes
Nutrition
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Originally Published September 7, 2016. Revised and Republished February 9, 2026.
Could the sun dried tomato sauce be made ahead of time and possibly be frozen?
Yes, I think so.
This looks amazing! Love to have low carb dinner options!
Creamy, cheesy and full of sun-dried tomato flavor – I’m in! I love easy dinners and this sounds like the perfect last minute weekday dinner.
I really loved the combination of flavors in this–however the ratio of ingredients seemed off to me. There was no way I would’ve been able to add that much spinach and still had anything resembling a “sauce” so I stopped at about 3oz. As it was, the sauce had all but disappeared in the finished dish. And this is probably the only time I’ll EVER say this, but the amount of provolone was a little overwhelming!
Overall, with some tweaks (maybe 2 lbs of chicken, less spinach, sauteed mushrooms for some extra flavor/texture), this will be a solid addition to my recipe collection.
Do you use sundried tomatoes in oil or just regular sundried tomatoes
The regular ones are fine.
Excited to try this! Do you think you could freeze this? And if so, would you bake then freeze or freeze raw? Thanks!
I’ve had readers freeze both before and after baking with my other casseroles. This should work fine too. Enjoy!
I made this last night for dinner and it was a hit with the whole family!!!
Both my boys asked for second!
Such a great family meal but also delicious enough for guest.
Thank you
This is such a great weeknight recipe! I’ve been looking for more good ones to add to my list, and this is perfect!
Sun dried tomatoes sauce over everything sound absolutely amazing! Espessialy delicious if it’s over chicken in casserole.
My kids loved this dish; that tells you everything! It’s not as heavy as I thought and so flavorful. I seasoned the chicken with salt, pepper, and Italian seasoning before I baked it. I served the chicken over orzo with basil and parsley for my husband and kids. I had mine with zucchini noodles. I will definitely be adding this to the dinner rotation 😁
Finally! A grain-free casserole I can get on board with! Loving this tuscan casserole like woah!
So many of my favorite things in one dish… pasta definitely isn’t missed when I’m enjoying this for dinner!
This was amazing! My whole family loves it. Thank you!
I’ve made this delicious recipe several times for my family, our church fellowship meals & friends! It is definitely a flavorful winner & I always get compliments. I make a few minor adjustments: I season my tenderloins with salt, pepper, garlic powder, smoked paprika & italian seasoning then cook in the instant pot manual high pressure for 6 minutes, natural release for 10-15. I utilize all the leftover juices where the recipe calls for warm water or stock. I’ve found doubling the sun dried tomatoes and the 3 tbsp warm liquid makes it so much better. I also add a bit more baby spinach and rough chop it. Overall a fantastic recipe!!
Great flavor. Easy to make.