Use marker to draw a Jack-O-Lantern face on the side of each plastic cup.
Cook macaroni & cheese cups in microwave according to package instructions.
Allow mac & cheese to cool for at least 5 minutes before transferring to plastic cups. If you put the hot pasta in the plastic cups when it's too hot, the plastic cup will warp!
Stick a cucumber spear in the top of each cup for the pumpkin's stem. Serve!
Notes
Scale this recipe to make as many mac and cheese cups as you need. If you're preparing cups for a big party, make a big box of mac and cheese on the stovetop and spoon into serving cups when ready to enjoy.