Preheat oven to 350° F. Microwave Cauliflower “Rice” and set aside to cool.
Cream butter and sugar together in large mixing bowl until light and fluffy. Add egg and vanilla and beat until incorporated, then stir in cooked “Rice”.
In another small bowl whisk together flour, salt and baking soda. Add dry ingredients to butter mixture and mix until just blended in then add chocolate chips and nuts and mix until well blended. Drop 1 tablespoon for small cookies (2 inches apart) and 2 tablespoons (3 inches apart) for larger cookies onto parchment lined cookie sheets and press cookies flat if thinner cookies are desired. Bake for 9-12 minutes until golden brown. Larger cookies may require slightly longer baking time.