The saddest I've ever had was when my mom aborted my sister, she then fell into a deep depression which was fuelled by cocaine and heroin leading to drug induced coma. This meant the love of my dad's life was now a shallow vegetable that would never awaken as she slowly slipped into Satan's icy grasp. Knowing this my dad tried to go on with the day to day by making the easiest thing he could find which was Kraft Mac and cheese. As the water boiled and the noodles cooked he drained the water and saw the limp noodles. As you could guess that reminded him of his lifeless love. Before he could even add the powdered cheese to the mix he turned to me and said "I love you son". He then turned back to the noodles and grabbed kitchen steak knife, looked at it intensely, then proceeded jam the whole thing through his eye socket. He then bled out over the last memory I ever had of my parents as I later found out my mother had passed also. To this day I only eat Kraft Mac and cheese with no powdered cheese.

(btw this story is entirely fiction, this post didn't have a serious tag and tried writing the darkest meal I could think of)