Add the almond bark to a large microwave-safe bowl.
Melt in the microwave in 30-second increments, until melted. Mine took about 90 seconds total.
Stir until the almond bark is smooth.
Add drops of green food coloring until desired color is reached.
Add the chow mein noodles to the almond bark. Stir until coated completely.
With a spoon, drop mounds of chow mein mixture on a parchment lined baking sheet. Leaving some space in between each cookie.
Immediately add holiday sprinkles to the top of each cookie.
Let the haystack cookies dry at room temperature. Alternatively, you can place them in the refrigerator to harden quicker.