Top 100 Five-Ingredient Dinners

I made this for a 6 y/o birthday party. The birthday boy is allergic to dairy, and loves oreos. Found great substitutes for all dairy in the recipe. It turned out perfectly. Nobody could tell it was dairy free. The 6 inch cake was for the birthday boy. He devoured a quarter of that little cake. What a hit. I'm sure it would be great with dairy as well, but This time, I didn't have the choice.

how many ozs of pasta do you usually cook for this?