Preheat oven to 200°C (180°C fan).
Toss the courgette slices, garlic cloves, and onion in olive oil. Spread on a baking tray and roast for 25–30 minutes, until golden at the edges.
Squeeze the roasted garlic from its skins.
In a large saucepan, combine the roasted vegetables, garlic pulp, diced potato, thyme, and stock. Simmer for 15 minutes until the potato is soft.
Blend the soup until smooth. Adjust thickness with a little extra stock if needed.
Season well with salt, pepper, and a squeeze of lemon juice to brighten the flavour.
Serve hot, garnished with fresh herbs and a drizzle of olive oil.
Drizzle with olive oil and sprinkle with pumpkin seeds