Sweet Potato & Lentil Curry

My friend Erik shared with me a recipe he enjoyed from Vegetarian Times for sweet potato and lentil packets.  It sounded good, so I picked up some of those two main ingredients at the grocery over the weekend.  When I got ready to make it today, I realized that I was missing several other ingredients.  Oops.  So, as I normally do when cooking, I decided to fake it.  I googled lentil and sweet potatoes, skimmed probably 15 recipes to stir my mind, and headed off to the kitchen and started pulling stuff out of cabinets and the fridge.  This is what I came up with and it was pretty darn tasty!

1 lb lentils, rinsed and sorted
4 sweet potatoes (yams), cut bite sized
1 onion, diced
5 large leaves of kale, chopped without stem
2 stalks celery, diced
1 green apple, diced
3 cloves garlic, diced
4 -6 cups veg. broth or water and veg. powder
4 T curry powder
salt & pepper to taste
olive oil

Heat olive oil over medium heat in large pan and saute onion and garlic until transparent.  Add everything green and saute for 3-4 minutes.  Add sweet potatoes and saute an additional 5-7 minutes.  Add remainder of ingredients, lower to medium high and cook, stirring occasionally until lentils and potatoes are cooked through.  Add additional broth or water as needed to prevent scalding. Serve with warm pitas.