Stuffed ratatouille mushrooms at 148 calories. Grilled portobello caps piled high with classic Provencal vegetables.

These Ratatouille Mushrooms take large, meaty portobello mushroom caps and load them with a classic ratatouille of courgette, aubergine, red pepper, and tomato, all built up in stages for maximum flavor. At 148 calories and 3 WW Classic Points per serving, this makes a hearty vegetarian main or an impressive starter.

Recipe Info

Serves: 2  |  Prep Time: 10 minutes  |  Cook Time: 25 minutes  |  Calories per serving: ~148

Nutrition per Serving (Estimated)

Protein: 6g  |  Fat: 3g  |  Carbohydrates: 22g  |  Fiber: 6g

WW Classic Points: Approximately 3 points per serving. Note: This estimate is based on the legacy WW points system and is provided as a general reference only.

Ingredients

  • 4 large open (portobello) mushrooms
  • 2 medium onions, sliced
  • 225g / 8oz courgettes, sliced
  • 1 small aubergine, sliced
  • 1 large red pepper, seeded and finely sliced
  • 1 can (400g) chopped tomatoes
  • 2 garlic cloves, crushed
  • 2 tablespoons fresh thyme, chopped
  • Olive oil spray
  • Salt and freshly ground black pepper, to taste
  • Fresh basil, to garnish

Instructions

  1. Grill the mushrooms. Place the mushroom caps on a baking tray and lightly spray with olive oil spray. Grill under a hot grill for 3 to 4 minutes on each side.
  2. Cook the onions. Preheat a non-stick frying pan or wok. Add the onions and dry-fry until soft.
  3. Add courgettes. Add the courgettes, season with salt and black pepper, and cook for a further 2 to 3 minutes. Transfer to a saucepan.
  4. Cook the aubergine and pepper. Add the aubergine and red pepper to the frying pan, season, and dry-fry for 4 to 5 minutes. Transfer to the saucepan with the other vegetables.
  5. Build the sauce. Pour the chopped tomatoes into the frying pan, add the garlic and thyme, and bring to a boil. Pour over the vegetables in the saucepan.
  6. Simmer. Place the saucepan over the heat and simmer for 10 minutes, until the vegetables are tender and the sauce has thickened slightly.
  7. Assemble and serve. Spoon the vegetable mixture generously onto the grilled mushroom caps. Sprinkle with fresh basil just before serving.

Serving Suggestions

  • Serve with a small portion of crusty whole-grain bread for a complete meal
  • Pair with a simple green salad dressed with lemon and olive oil
  • Top with a light scattering of grated Parmesan for extra flavor
  • Offer as an elegant vegetarian starter for a dinner party
  • Serve warm, straight from the pan

Tips and Variations

  • Grilling the mushrooms briefly before topping softens them and releases some of their moisture, preventing a soggy result later.
  • Cooking the vegetables in stages, rather than all at once, allows each one to develop good color and flavor before combining.
  • Fresh thyme gives noticeably better flavor than dried, given how central it is to the sauce.
  • Large, flat portobello mushrooms work best here for their sturdy structure and generous size.
  • This dish is naturally vegan, making it suitable for a wide range of dietary needs.

Why This Recipe Works

Cooking each vegetable in stages, rather than all together in one pot, is the classic ratatouille technique that ensures every component reaches its ideal texture rather than turning into a uniform mush. Grilling the mushroom caps separately gives them a head start on cooking and a slightly smoky flavor that complements the rich, tomato-based vegetable filling. The result is a dish with real textural variety and depth, despite being entirely plant-based.

Storage and Reheating

Store cooled mushrooms and filling in an airtight container in the refrigerator for up to 2 days. Reheat gently in a 170C oven for 10 to 15 minutes until warmed through.


Disclaimer: Nutritional information is estimated and may vary based on specific ingredients, brands, and portion sizes used. This recipe is for informational purposes only and is not a substitute for professional dietary or medical advice. Always consult a healthcare provider or registered dietitian for guidance tailored to your individual needs.

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