Preheat oven to 350°F (175°C).
In a large bowl, cream together the butter and brown sugar.
Add eggs and vanilla, mix well.
In a separate bowl, combine the flour, baking soda, and salt.
Gradually add the dry ingredients to the wet mixture.
Stir in the oats, flaxseed meal, brewer's yeast, and water.
Fold in the chocolate chips.
Drop spoonfuls of dough onto a baking sheet.
Bake for 10-12 minutes or until edges are golden brown.
Allow cookies to cool on a wire rack.