In a large skillet set over medium-high heat, sauté the onion in oil for 2-3 minutes, until soft. Add the garlic and ginger and cook for another minute. Add any veg that take longer to cook (ie potatoes and cauliflower) along with the curry paste and cook for a few more minutes.
Add the pepper and any other veggies you’ve chosen. Sauté them for a few minutes, just until the vegetables start to release their juices and soften.
Add the tomatoes and cook until most of the moisture has cooked off, then add the coconut milk and chutney and bring the mixture to a simmer. Add the apple and cook for about 5 minutes. You could always add some shrimp or leftover chicken or turkey) right about here too.
Season with salt and pepper and stir in the spinach; cook for a minute, just until it wilts. Serve immediately over rice with chopped peanuts sprinkled on top.