1. Cut the eggplant cross-wise into 1 1/2 inch thick slices. Sprinkle them all over with salt and allow to drain in a colander over the sink for 20-30 minutes. Rinse well to remove all the salt and chop into bite-sized pieces.
2. In a large skillet or wok, melt the coconut oil or ghee over medium heat. Add the mustard seeds and cook for a minute or two until they "pop", then add the ginger, garlic, and chili pepper. Stir everything around for a minute or so.
3. Add the chopped eggplant and sweet potato to the pan along with the coconut milk. Bring to a boil, and then reduce the heat to a simmer. Cook for about 20 minutes, stirring occasionally. Add a little water if the liquid seems too thick.
4. Add the zucchini, green pepper, collard greens and tomato, and cook for another 15-20 minutes, or until the vegetables are very tender, again adding a little water if necessary.
5. Mix in the spices and salt. Cook for one minute more. Taste and adjust the spices, if necessary. Add a little more red chile powder and/or salt, if you like.
6. To make the simple mint-cilantro chutney, mix equal parts chopped mint and cilantro with fresh lime and a little organic sugar. Taste and adjust the lime and sugar to your liking. I used about 1/2 cup each of the herbs, the juice of 1/2 lime and 1 tsp. of sugar. You can make a little or a lot of this, but just know that it doesn't keep very well, so don't plan to refrigerate it longer than a day or two.