Vegetarian moussaka

Ingredients

• olive oil spray
• 1 large eggplant, thinly sliced
• 2 zucchini (courgettes), thinly sliced
• 1 tbs olive oil
• 1 onion, sliced
• 2 cloves garlic, crushed
• 400g can brown lentils, rinsed and drained
• 1 tbs rosemary, roughly chopped
• 400g can diced tomatoes, no added salt
• 150g reduced fat ricotta cheese
• ⅔ cup low fat soy or dairy milk