Juicy pan-seared chicken breasts are paired with portobello mushrooms stuffed with creamy spinach and herbs, creating an elegant yet healthy main dish that's naturally low-carb and full of flavor.

Recipe Details
Units:
Prep: 25 Cook: 30
Ingredients
  • 4 pieces (680g) boneless, skinless chicken breasts
  • 4 large portobello mushroom caps, stems removed
  • 60ml olive oil, divided
  • 200g baby spinach
  • 225g ricotta cheese
  • 60g Parmesan cheese, grated
  • 4 cloves garlic, minced
  • 1 medium shallot, finely diced
  • 15ml fresh thyme leaves
  • 10ml fresh rosemary, chopped
  • 120ml chicken broth
  • 120ml dry white wine
  • 30g unsalted butter
  • 1 whole lemon, juiced and zested
  • 115g mozzarella cheese, shredded
  • to taste salt and freshly ground black pepper
Instructions
  1. Preheat oven to 200°C (400°F). Clean 4 large portobello mushroom caps with a damp paper towel and remove gills if desired. Brush both sides with 15ml (1 tbsp) of 60ml olive oil and season with to taste salt and freshly ground black pepper.

  2. Place mushrooms gill-side up on a baking sheet. Bake for 10 minutes to partially cook and remove moisture.

  3. Meanwhile, pound 4 pieces (680g) boneless to even thickness (about 2cm/3/4-inch). Season both sides generously with to taste salt and freshly ground black pepper.

  4. Heat 15ml (1 tbsp) 60ml olive oil in a large skillet over medium heat. Add 1 medium shallot and cook for 2 minutes. Add half the 4 cloves garlic and cook 30 seconds until fragrant.

  5. Add 200g baby spinach and cook until wilted, about 2-3 minutes. Transfer to a bowl and let cool slightly.

  6. Mix wilted spinach with 225g ricotta cheese, 60g Parmesan cheese, half the 15ml fresh thyme leaves, and lemon zest from 1 whole lemon. Season with to taste salt and freshly ground black pepper.

  7. Remove mushrooms from oven and fill each cap with spinach mixture. Top with 115g mozzarella cheese. Return to oven for 10-12 minutes until cheese is melted and golden.

  8. While mushrooms bake, heat remaining 60ml olive oil in the same skillet over medium-high heat. Add chicken and cook 6-7 minutes per side until golden brown and cooked through (internal temperature 74°C/165°F). Transfer to a plate and tent with foil.

  9. In the same pan, add 30g unsalted butter, remaining 4 cloves garlic, 10ml fresh rosemary, and remaining 15ml fresh thyme leaves. Cook 30 seconds until fragrant.

  10. Add 120ml dry white wine and 120ml chicken broth, scraping up any browned bits. Simmer for 2-3 minutes to reduce by half. Add juice from 1 whole lemon and swirl in any accumulated chicken juices.

  11. To serve, place one stuffed mushroom on each plate, slice chicken and fan beside mushroom. Drizzle with pan sauce.

Tips

Chicken Preparation: Pounding chicken to even thickness ensures uniform cooking. Use a meat mallet or rolling pin between plastic wrap.

Mushroom Selection: Choose mushrooms with deep caps and sturdy edges. Remove stems carefully to avoid breaking the cap.

Wine Substitute: Replace white wine with additional chicken broth plus 1 tablespoon white wine vinegar or lemon juice.

Make-Ahead: Stuff mushrooms up to 24 hours ahead and refrigerate. Add 5 minutes to baking time if starting from cold.

Spinach Tip: Squeeze excess moisture from cooked spinach to prevent watery filling. Use frozen spinach (thawed and drained) to save time.

Temperature Check: Use a meat thermometer to ensure chicken reaches safe internal temperature without overcooking.

Serving Variations: This pairs beautifully with roasted cherry tomatoes, cauliflower rice, or a simple arugula salad.

Storage: Store components separately for best results. Reheat chicken gently to prevent drying out.