Preheat oven to 350 degrees. Grease 9x13 or just use a piece of parchment to line pan. In a large mixing bowl combine oats, flour, brown sugar or xylitol/molasses, and baking soda. In a separate bowl, stir together the butter, water, peanut butter, honey, and vanilla extract. Add to the dry ingredients and mix until incorporated well. Add chocolate chips and nuts/seeds. Press the mixture evenly into the pan and bake for about 20 minutes or until the top is lightly golden brown. Let cool for 10 minutes before lifting bars out. Cut into pieces of desired size.