I'd put chocolate chips on top instead of nuts. Quick but a decadent cake at the same time - Nutella Cheesecake. All you need is Graham Crackers, cream cheese, Nutella and some nuts, and only 40 minutes.
One-Skillet Mac and Cheese with Sausage and Bell Peppers, smothered in marinara sauce and cream. Everything is cooked in one skillet: sausage, bell peppers, and even pasta! Almost looks like a Goulash made with sausage.