This is mine. It's easy in my opinion.
You'll need:
1 box mac & cheese
2 small cans or 1 large can tuna
1 can cream of mushroom soup
crackers or potato chips (whichever you prefer) personally I prefer the crackers)
Preheat over to 350 degrees.
Cook mac & cheese according to directions. Once done, mix mac& cheese, drained tuna, & cream of mushroon soup in a baking dish. Crush crackers or potato chips over the top and cook for 30 minutes.
I love this dish on a

day and it makes enough that DH and I can have leftovers for two or three days (just to two of us eat table food right now).