Spinach & Sweet Potato Lasagna with Parmesan Cream Sauce

Ingredients

• 1 box lasagna noodles
• 1 bag spinach
• 1 large sweet potato
• 1 15 oz. container ricotta cheese
• 1 pint heavy cream
• 1/4 cup + Parmesan cheese
• 3 tbsp. butter
• 1/2 cup plain bread crumbs
• 2-3 tbsp. olive oil
• 3 each sage leaves
• 1 pinch grated nutmeg
• 1 to taste salt & pepper