Preheat the oven to 375 degrees.

In a large oven safe/cast iron skillet* melt the coconut oil or butter over medium heat. When the pan is good and hot add the diced onions and saute until translucent.

Add in the sausage and brown over medium heat.

Add in the diced butternut squash and sweet potato and cook until softened.

While the squash and sweet potato are cooking mix the eggs, heavy cream, salt and pepper in a medium sized bowl.

After the squash and sweet potato are softened add the mixed eggs and cream right over the top of the sausage mixture.

Let the bottom of the frittata start to cook maybe about 5 minutes or so then place the pan in the oven.

Cook for approximately 20-25 minutes or until the eggs are no longer liquid or no longer jiggle when you move the pan.