Curry Lentil Soup with Apples

2 small onions, diced
1 potato, cubed
1 sweet potato, cubed
2 small zucchini, cubed
1 1/2 c green lentils, rinsed
10 c water with 5 veggie bullion
2 TB curry powder
1 apple, peeled and cubed
3/4 c coconut milk

Saute onions, potatoes, sweet potato and zucchini briefly. Add lentils, water, bullion and curry powder and simmer for 40 min. Add cubed apple when done cooking and let sit 5 min. Add coconut milk. Serve with naan.  Can try to add carrot, celery and ginger.