The simple trick is to add green food coloring to your cookie dough. You do not have to add very much, just a couple teaspoons.
Add a little, mix the dough and see how it looks, then you can add more to get the coloring right. You can always add more, but you can’t subtract it, so be conservative in adding the coloring.
A simple recipe is to take sugar cookie dough because of its light color. Add green food coloring. You will not need much, maybe ten to twelve drops to get a nice green color. The continue to make according to your regular sugar cookie recipe.
To add chocolate chips you do not need chocolate chip dough. You can use sugar cookie mix, such as Betty Crocker sugar cookie mix, add the green food coloring to give it the right color, then add in chocolate chips.