Pumpkin & Spicy Kale Lasagna

Ingredients

• 12 small sheets of lasange
• 600g butternut pumpkin, peeled, deseeded, cut into 1cm pieces
• 2 1/2 tbsp olive oil, plus extra to serve
• 1 1/2 tsp ground coriander
• 2 large onions, finely chopped
• 1 long fresh chilli, thinly sliced
• 2 garlic cloves, crushed
• 1 1/2 tsp brown mustard seeds
• 280g kale, chopped
• 1 1/2 tbsp fresh lemon juice
• 250g cottage cheese