This easy 4 ingredient Tuna Casserole is made with pantry items like macaroni, canned tuna and mushroom soup. Made without bread crumbs, its crowning glory is melted cheese; simple comfort food at its finest!
Preheat oven to 350 degrees f and spray a large casserole dish with non-stick cooking spray
Cook macaroni as per package directions (until al dente) and drain.
Mix in cream of mushroom soup and tuna into cooked pasta and pour into baking dish.
Spread grated cheese evenly over macaroni mixture.
Bake in preheated oven for about 20 minutes.
Garnish
Sprinkle green onions over casserole. Serve warm.
Notes
*NOTE:Â This recipe can be made ahead, but it tastes so much better when it's fresh!
Storage: Store this tuna casserole in an airtight container for up to 2 days. Tuna tends to taste and smell very fishy if you leave it in the fridge for more than 2 days.This recipe will freeze well in a sealed container for up to 3 months.To Reheat:Defrost it in the fridge overnight, then microwave it until warm. You can also reheat it in the oven like a casserole:I love using this casserole reheating technique for any pasta casserole- it prevents the casserole from drying out.
Simply bring it out of the freezer the night before and let it defrost (preferably in the fridge). Ideally, you want to keep it at room temperature for about 30 minutes to an hour before you put it in the oven.
Then heat the oven to 350 degrees F/175 degrees C, remove the lid and plastic wrap, then tightly seal your casserole dish with aluminum foil (shiny side in) and put it in the oven for 20 - 30 minutes, until it's warmed through. *you can remove the foil and broil it for the final 2 minutes if you desire. *Alternatively, you can tent it, if your cheese is right to the top of the casserole dish, as mine is.