Cheesy Spinach-Stuffed Chicken Breast with Garlic Butter Sauce

By AislePrompt Test Kitchen · Reviewed by AislePrompt Editorial · ·

Juicy chicken breasts stuffed with spinach and mozzarella, pan-seared and finished with a rich garlic butter sauce for a satisfying keto meal. This american-inspired keto (low carb, high protein) ready in about 40 minutes blends chopped fresh spinach, shredded mozzarella cheese, softened cream cheese into a versatile sauce that lifts everything from grain bowls and roasted vegetables to grilled proteins — a small-batch staple worth keeping in the fridge. Each serving lands at about 450 calories and feeds 4, so a small batch covers several meals across the week without taking over the fridge. Tap "Plan a meal with the AI" below to drop this recipe into your week and send the ingredients straight to Instacart. Nutrition values are approximate, calculated from USDA FoodData Central (fdc.nal.usda.gov) — verify against ingredient labels for any health-driven dietary plan.

Prep: 15 min Cook: 25 min Serves 4 American cuisine 450 cal/serving
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Ingredients

Instructions

  1. Step 1: Preheat oven to 375°F. Carefully slice a pocket into each of the 4 chicken breasts without cutting all the way through.
  2. Step 2: In a bowl, combine 2 cups chopped fresh spinach, 1 cup shredded mozzarella cheese, and 2 oz softened cream cheese; mix until evenly blended.
  3. Step 3: Stuff each chicken breast pocket with the spinach-cheese mixture and secure with toothpicks if needed.
  4. Step 4: Season the stuffed chicken breasts with 1 tsp salt, 1/2 tsp black pepper, and 1/2 tsp dried oregano.
  5. Step 5: Heat 2 tbsp olive oil in an oven-safe skillet over medium-high heat and sear the chicken breasts for 3-4 minutes per side until golden brown.
  6. Step 6: Add 4 tbsp butter and 3 minced garlic cloves to the skillet, swirling to melt butter and infuse garlic aroma.
  7. Step 7: Transfer the skillet to the preheated oven and bake for 15-18 minutes until chicken reaches an internal temperature of 165°F and cheese is melted.
  8. Step 8: Spoon the garlic butter sauce over the chicken before serving for a rich, flavorful finish.

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Frequently asked questions

How long does Cheesy Spinach-Stuffed Chicken Breast with Garlic Butter Sauce take to make?

Total time is about 40 minutes (15 min prep + 25 min cook). A small batch typically covers several meals in the week — store as the recipe directs.

How do I store leftover Cheesy Spinach-Stuffed Chicken Breast with Garlic Butter Sauce?

Transfer to an airtight jar and refrigerate for up to 5–7 days. Most sauces freeze well for up to 2 months — portion into small containers or freezer bags so you can thaw only what you need. Stir before serving; cream- or yogurt-based sauces may separate on standing.

Can I substitute ingredients in Cheesy Spinach-Stuffed Chicken Breast with Garlic Butter Sauce?

Yes — most ingredients in this recipe have flexible swaps. For oil, use any neutral high-smoke-point oil (avocado, grapeseed, refined coconut). For aromatics, dried herbs at ⅓ the volume of fresh work in a pinch. The full ingredient list is shoppable on Instacart so you can see substitutes in real time.

How do I scale Cheesy Spinach-Stuffed Chicken Breast with Garlic Butter Sauce for a different number of people?

The recipe is written for 4 servings. Multiply each ingredient by (your serving target / 4). Cook time stays roughly the same up to 2x; for 3-4x batches, switch from a skillet to a sheet pan or stockpot so the food isn't crowded — overcrowding steams instead of browns.

Is Cheesy Spinach-Stuffed Chicken Breast with Garlic Butter Sauce low carb?

Yes — this recipe is tagged low carb, high protein, gluten free based on its ingredient list. Always cross-check labels for packaged ingredients (sauces, broths, condiments) since formulations vary by brand.

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