In a medium sauce pot, add the remaining 2 tsp of coconut oil and heat on medium until shimmering. Add the onion and saute' on medium low for about 5-6 minutes or until softened. Add the sea salt, cumin, paprika, chili powder, garlic salt and stir for about 1 minute or until spices are fragrant. Stir in the quinoa, tomatoes and water. Bring to a simmer, place the lid on and cook for 15 minutes on low. Uncover, and stir in the black beans and sweet potatoes. Taste for seasoning adjustment and allow to set for about 10 minutes, without the lid on, before stuffing the peppers.