Preheat oven to 400° Fahrenheit and line a baking sheet with parchment paper. Place diced potatoes on the sheet and toss with melted ghee and a bit of salt and pepper. Place in oven to bake for about 30 minutes, until the potatoes are slightly crispy around the edges.
While the potatoes are cooking, heat a large skillet over medium heat. Once hot, add in sausage and beef. Break it into small pieces and cook, stirring occasionally, until the meat is browned and becomes slightly crispy, about 10 minutes.
Add in the jar of marinara sauce, kale and crushed red pepper flakes and mix to combine. Let simmer for about 5-6 minutes, until kale is soft and cooked through. Taste and season with salt and pepper as desired. Turn down to low to keep warm until the potatoes are finished.
Serve sweet potatoes topped with shakshuka mixture and avocado slices for topping. If desired, add in an egg cooked to your preference.