Preheat oven to 350F.
Combine the sugar, brewers yeast, flaxseed meal, baking soda in a large bowl and mix well.
Add the nut butter, coconut oil and egg to the bowl. Using a hand mixer, beat until creamy.
Fold in the oats, chocolate chips, dates, walnuts, and hemp seeds.
Pour batter into a parchment-lined 8x8 pan.
Bake for 20 minutes.
Allow the pan to cool, then slice and serve.