Preheat the oven to 350 degrees F.
In a medium-sized bowl using a hand mixer (or stand mixer) stir together the peanut butter, honey, and brown sugar.
Add the oats, salt, baking soda, and vanilla extract. Stir well.
Add the egg to the mixture and mix until incorporated.
Stir in the mini chocolate chips.
Use a cookie scoop to scoop out the dough. (2 tablespoons of dough.) Press the dough very tightly in the cookie scoop to form the balls if using your hands squeeze the mixture tightly into a ball so it doesn’t crumble.
Form the balls onto a cookie sheet, press down slightly, top with the M&M's and more mini chocolate chips if desired. Bake for 4 minutes, remove from oven and quickly top with the desired amount of candy eyes. Put back in the oven and bake for another 3 to 4 minutes. (7-8 minutes total.)
Watch the cookies closely and remove when the bottom barely starts to brown even if they don't look completely done (they cook more as they cool).
Remove and allow to cool completely.
Enjoy!