Kale and Sweet Potato Gratin

1 bunch kale chopped

2 lbs sweet potatoes, thinly sliced

1 1/2 cups shredded parmesan cheese

1 pint heavy whipping cream

3 cloves garlic, minced

1 onion sliced thin

2 tsp red pepper flakes

1 Tbsp olive oil to coat the pan

1 tsp salt

Black pepper to taste

Preheat oven to 400°F. Bring a Pot of water to boil. In the meantime, chop kale into bite-sized pieces. Add kale and heat for about 1 minute or until kale is bright green and slightly wilted. Remove from water and allow to cool slightly.  Squeeze out excess water.  

In a small saucepan add the heavy cream and bring to a simmer.  Add garlic, red pepper flakes, salt and 1 cup of parmesan.  

Add a layer of sweet potatoes to the bottom of a baking dish.  Begin layering kale and cream mixture with the sweet potatoes until the ingredients are gone. Add sliced onion and pour some of the cream mixture over the top. Top with remaining parmesan cheese and cover dish with aluminum foil and bake for 40-50 minutes.  Remove foil for the last 10 minutes of cooking. Allow to sit for 10 minutes before serving.