Whisk together the eggs, coconut milk, salt, black pepper, garlic powder, and hot sauce until well combined.
Heat a large oven safe non-stick skillet over medium heat. When the skillet is hot, add the avocado oil, ground sausage, and diced onion. Brown the sausage, breaking it up as it cooks.
Once the sausage is fully cooked, add the roasted sweet potatoes and chopped spinach to the skillet and stir until well combined.
Next, evenly pour the egg mixture over the sausage and veggies. Bake the frittata for 20-25 minutes until the egg is completely set. Remove from the oven and let cool for 5-10 minutes before serving. Enjoy!