Keto Chicken Mozzarella Skillet – Fast, Cheesy, and Low-Carb
This Keto Chicken Mozzarella Skillet is the kind of weeknight dinner that feels special without any fuss. Tender chicken, a rich garlic-tomato base, melty mozzarella, and a handful of fresh basil all come together in one pan. It’s cozy, satisfying, and ready in about 30 minutes.
If you’re watching carbs but still want bold, comforting flavors, this dish checks all the boxes. Serve it as-is or with a simple side, and you’ve got a dinner everyone will love.
Ingredients
Method
- Prep the chicken: Pat chicken dry and season both sides with salt, pepper, and half the Italian seasoning. If the breasts are thick, slice them into thinner cutlets for faster, more even cooking.
- Sear the chicken: Heat olive oil in a large oven-safe skillet over medium-high. Add the chicken and sear 3–4 minutes per side until golden. Remove to a plate. It doesn’t need to be fully cooked yet.
- Build the sauce: Lower heat to medium. Add butter (if using), then garlic. Sauté 30 seconds until fragrant. Stir in crushed tomatoes, chicken broth, tomato paste, remaining Italian seasoning, onion powder, and red pepper flakes. Simmer 4–5 minutes to thicken slightly. Taste and adjust salt and pepper.
- Add greens (optional): Stir in spinach and cook 1–2 minutes until wilted.
- Return chicken to the pan: Nestle the seared chicken into the sauce. Spoon some sauce over the top. Simmer gently 4–6 minutes until the chicken is just cooked through (internal temp 165°F/74°C).
- Add the cheese: Scatter Parmesan over the skillet, then lay mozzarella slices on top of the chicken. Cover and let the cheese melt for 2–3 minutes, or transfer to the broiler for 1–2 minutes until bubbly and lightly browned. Watch closely.
- Finish and serve: Remove from heat and top with fresh basil. Let rest 3 minutes to settle. Serve straight from the skillet with extra sauce spooned over each piece.
Why This Recipe Works
This skillet nails the balance of flavor and texture: juicy chicken, creamy mozzarella, and bright tomato. Cooking everything in one pan builds layers of flavor and cuts down on cleanup.
The sauce is thick and savory without added sugar, so it stays keto-friendly. Finally, broiling the cheese at the end gives that irresistible golden, bubbly finish.
Shopping List
- Chicken: 1.5 pounds boneless, skinless chicken breasts (or thighs), cut into cutlets
- Olive oil: 2 tablespoons
- Butter: 1 tablespoon (optional, for richness)
- Garlic: 3–4 cloves, minced
- Crushed tomatoes: 1 can (14–15 ounces), no added sugar
- Chicken broth: 1/2 cup (low sodium)
- Tomato paste: 1 tablespoon (no sugar added)
- Italian seasoning: 1 teaspoon
- Red pepper flakes: 1/4 teaspoon (optional, for heat)
- Onion powder: 1/2 teaspoon
- Salt and pepper: To taste
- Fresh mozzarella: 8 ounces, sliced (or shredded low-moisture mozzarella)
- Parmesan: 1/4 cup grated
- Fresh basil: Handful, torn or chopped
- Spinach (optional): 2 cups fresh, for extra greens
Instructions
- Prep the chicken: Pat chicken dry and season both sides with salt, pepper, and half the Italian seasoning. If the breasts are thick, slice them into thinner cutlets for faster, more even cooking.
- Sear the chicken: Heat olive oil in a large oven-safe skillet over medium-high.
Add the chicken and sear 3–4 minutes per side until golden. Remove to a plate. It doesn’t need to be fully cooked yet.
- Build the sauce: Lower heat to medium.
Add butter (if using), then garlic. Sauté 30 seconds until fragrant. Stir in crushed tomatoes, chicken broth, tomato paste, remaining Italian seasoning, onion powder, and red pepper flakes.
Simmer 4–5 minutes to thicken slightly. Taste and adjust salt and pepper.
- Add greens (optional): Stir in spinach and cook 1–2 minutes until wilted.
- Return chicken to the pan: Nestle the seared chicken into the sauce. Spoon some sauce over the top.
Simmer gently 4–6 minutes until the chicken is just cooked through (internal temp 165°F/74°C).
- Add the cheese: Scatter Parmesan over the skillet, then lay mozzarella slices on top of the chicken. Cover and let the cheese melt for 2–3 minutes, or transfer to the broiler for 1–2 minutes until bubbly and lightly browned. Watch closely.
- Finish and serve: Remove from heat and top with fresh basil.
Let rest 3 minutes to settle. Serve straight from the skillet with extra sauce spooned over each piece.
How to Store
Cool leftovers completely, then transfer to an airtight container. Refrigerate up to 4 days. For best texture, reheat gently on the stovetop over low heat or in the microwave at 50% power, just until warmed. If the sauce thickens in the fridge, a splash of broth will loosen it.
You can freeze it for up to 2 months, though fresh mozzarella may release a bit of liquid after thawing. Stir and reheat gently to bring it back together.
Why This is Good for You
- Low in carbs, high in protein: Chicken gives you steady energy and keeps you full without spiking blood sugar.
- Healthy fats: Olive oil, mozzarella, and Parmesan add satisfying fats that fit keto goals and enhance flavor.
- Micronutrients: Tomatoes provide lycopene and vitamin C, while basil adds antioxidants. Add spinach for iron and fiber.
- No added sugar: Choosing no-sugar-added tomatoes and paste keeps the sauce clean and keto-friendly.
What Not to Do
- Don’t overcook the chicken: It turns dry fast.
Sear, simmer briefly in the sauce, and stop when just done.
- Don’t use sugary sauces: Many jarred sauces sneak in sugar. Read labels or make the simple sauce here.
- Don’t skip seasoning: Salt and herbs make the chicken and tomatoes shine. Taste as you go.
- Don’t drown the pan: Too much broth waters down flavor.
Simmer to reduce and concentrate.
- Don’t walk away from the broiler: Cheese can go from golden to burnt in seconds.
Recipe Variations
- Caprese Style: Add a drizzle of balsamic vinegar (or a sugar-free reduction) at the end and extra basil.
- Creamy Tomato: Stir 1/4 cup heavy cream into the sauce before adding the chicken for a richer finish.
- Spicy Arrabbiata: Bump up red pepper flakes and add a pinch of smoked paprika.
- Mushroom Boost: Sauté 8 ounces sliced mushrooms after searing the chicken, then continue with garlic and sauce.
- Olive and Herb: Add 1/3 cup sliced Kalamata olives and extra oregano for a Mediterranean twist.
- Cheese Swap: Try provolone or fontina for a different melt and flavor profile.
- Zoodle Bed: Serve over sautéed zucchini noodles or roasted spaghetti squash to keep it low-carb.
FAQ
Can I use chicken thighs instead of breasts?
Yes. Boneless, skinless thighs stay extra juicy and work beautifully. Sear as directed and simmer until they reach 165°F/74°C.
Is mozzarella keto-friendly?
Absolutely.
Mozzarella is low in carbs and high in fat and protein. Choose fresh or low-moisture versions with no added starches.
What can I serve this with on keto?
Great options include sautéed zucchini noodles, cauliflower rice, roasted broccoli, garlic green beans, or a simple arugula salad with olive oil and lemon.
How do I thicken the sauce without flour?
Reduce it by simmering a few extra minutes. Tomato paste also helps.
If needed, stir in a tablespoon of mascarpone or cream cheese for body.
Can I make this dairy-free?
Yes. Skip the mozzarella and Parmesan, and finish with a drizzle of extra-virgin olive oil and lots of herbs. It won’t be the same style, but it’s still delicious.
My sauce tastes too acidic—what can I do?
Add a small knob of butter or a splash of heavy cream to round it out.
A pinch of baking soda can reduce acidity, but use sparingly and taste as you go.
Do I need an oven-safe skillet?
It helps for broiling the cheese, but it’s not required. You can cover the skillet on the stovetop to melt the cheese or transfer everything to a small baking dish for the final melt.
Can I meal prep this?
Yes. Cook fully, cool, and store in portions.
Reheat gently and add fresh basil just before serving. It keeps well for several days.
In Conclusion
This Keto Chicken Mozzarella Skillet gives you comfort-food flavor with simple steps and clean ingredients. It’s weeknight-friendly, satisfying, and endlessly adaptable to your tastes.
Keep the sauce bright, the chicken juicy, and the cheese bubbly, and you’ll have a go-to low-carb dinner that never gets old. Enjoy it on its own or with your favorite keto sides, and make it your own with the variations above.
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