Preheat oven to 350 degrees.

Place chocolate in a microwave-safe bowl and carefully melt it. If not using a microwave, place in a small saucepan and place on a heat diffuser on stove. Melt on very low heat. (you can also use a double boiler if you prefer). Set aside to cool.

In a large bowl mix eggs with brown sugar and agave and beat until well blended. Add vanilla, cinnamon and nutmeg.

Spread chocolate over pie crust and cover with pecan pieces. Carefully pour in egg/sugar mixture. Place pecan halves decoratively on top.

Bake for 50 – 60 minutes or until pie no longer jiggles. Allow to cool on rack until completely set.

Serve with whipped cream if desired.