Want your kids to eat more veggies but are having a hard time doing so? Try grilling up this tasty grilled macaroni and cheese sandwich and stuffing it with delicious and nutritious broccoli florets. This recipe calls for leftover macaroni and cheese, but it can totally work if you make it on the spot as long as you let it cool and thicken up for a bit. I recommend following this recipe if you don't have some already on hand. To view step-by-step photographs for this recipe or to view the original post on my blog grilled cheese social. Com.