3-Ingredient Tuna Casserole

"Yes, you can actually pull together a delicious, nutritious, and easy dinner with just a few pantry staples! Skip a trip to the grocery store and use what’s already in your kitchen to serve your family this cozy 3-Ingredient Tuna Casserole at the end of a busy fall day! The mac and cheese, tuna, and peas are combined in a large dish, covered with foil, and baked in the oven (just until the peas are heated through and the casserole “sets”). Since my Great Aunt Bee always puts a buttery crumb topping on her tuna casserole, I decided to do the same! This step is totally optional (and it’s not part of Sam’s original 3-ingredient recipe), but I think it makes the dish just a little bit more special. I hope that you enjoy this simple, wholesome, and easy weeknight dinner — just in time for fall comfort food, busy back-to-school evenings, and precious family time together around the table!"

NotesCooking for Two? This is a very easy recipe to cut in half! Use one box of mac and cheese, one can of tuna, and half a bag of peas. Bake the casserole in an 8-inch square dish. Cooking instructions remain the same.

Why You'll Love This Casserole Recipe

There are several reasons why our readers should make this 3-Ingredient Tuna Casserole recipe. First and foremost, it is incredibly easy to put together, with just a few pantry staples. This means you can skip a trip to the grocery store and use what you already have on hand. This is perfect for busy weeknights when you don't have time to plan an elaborate meal.

Second, this tuna casserole is not only easy to make, but it is also delicious and nutritious. The combination of mac and cheese, tuna, and peas creates a comforting and satisfying dish that the whole family will love. Plus, the buttery crumb topping adds a little extra something special to the dish, making it perfect for serving to guests or for a cozy night in with your loved ones.

Lastly, this recipe is perfect for fall comfort food, busy back-to-school evenings, and precious family time around the table. It's a wholesome and easy dinner that will bring everyone together and leave you feeling satisfied and happy. So why not give it a try and see for yourself how delicious and simple this 3-Ingredient Tuna Casserole can be?

Preparation Time15 min

Cooking Time10 min

Cooking Vessel Size9 x 13 Baking Dish