Step 1 Preheat the oven to 180°C and lightly grease a baking tray.
Step 2 Heat half the oil in a large pan on medium-low heat. Add onion and cook, stirring, for 8-10 minutes until soft and tinged golden. Add 1 1/2 teaspoons curry powder, then stir for 1 minute. Remove from heat.
Step 3 Place naan on a baking tray, sprinkle with cheese and top with three-quarters of the onion. Bake for 5-6 minutes until golden brown and cheese has melted.
Step 4 Meanwhile, whisk remaining oil and curry with garlic, juice, salt and pepper in a bowl. Add remaining onion, spinach and lentils. Toss to combine. Serve with naan.
