To prepare a fudgy chocolate spinach brownies recipe, first you need to prepare your ingredients. First, you'll need your chocolate chips. You can buy them at most grocery stores or online. Then, if you don't have any, then you can use your favorite store-bought chocolate chip cookie dough. Now, add your dry ingredients to the wet ingredients and mix until the ingredients are well combined. Pour the batter into the prepared pan and bake for 25 minutes at 350 degrees. Remove from the oven and let cool for 5 minutes before cutting into squares.