Preheat oven to 350°F and line baking sheets with parchment paper.
In a large bowl, mix together tahini, honey, vanilla, and dates until smooth.
In a separate bowl, combine processed oats, cinnamon, salt, baking soda, and walnuts. Fold dry ingredients into wet ingredients and mix well until thoroughly combined.
Drop tablespoon-sized spoonfuls of cookie batter 1 inch apart onto lined baking sheets. Bake in oven for 10 minutes. Let cookies cool slightly on sheets to firm up before removing.