Roast butternut galette - Penny Melville-Brown

Ingredients

• 1 butternut squash, peeled and cut into 1 cm cubes
• 1 courgette, trimmed and cut into cubes
• 1 red pepper, deseeded and cut into 1 cm squares
• Half teaspoon ground black pepper
• Half teaspoon salt
• Quarter teaspoon chilli powder (optional)
• 2 heaped teaspoons thyme leaves
• 1 teaspoon garlic powder
• 2 tablespoons olive oil
• 2 large handfuls walnut pieces
• 2 spring onions, trimmed and chopped fine
• 2 teaspoons tomato powder