This 4-ingredient stovetop tuna casserole is my busy-weeknight secret weapon: you literally dump raw canned tuna straight into a skillet with three everyday pantry items, stir, simmer, and dinner is done. It’s creamy, cozy, and tastes like the classic oven-baked casserole I grew up with in the Midwest, but without turning on the oven or dirtying a bunch of dishes. If you’re juggling work, kids’ activities, and a never-ending to-do list, this is the kind of low-effort, high-reward meal your family will ask for again and again.
Serve this stovetop tuna casserole hot, straight from the skillet, with a simple green side salad or steamed frozen veggies to round things out. Buttered toast, garlic bread, or crackers on the side are great for scooping up the creamy sauce. If you want to stretch the meal, add a bowl of fruit or a quick veggie tray with ranch. Leftovers reheat well in a small skillet with a splash of milk or water, making it perfect for lunch the next day.
4-Ingredient Stovetop Tuna Casserole
Servings: 4

Ingredients
2 (5-ounce) cans tuna in water, undrained
2 cups small dry pasta (such as elbow macaroni or small shells)
2 cups milk (any cow’s milk, 2% or whole works best)
1 cup shredded cheddar cheese (plus a little extra for topping, optional)
1/2 teaspoon salt (optional, to taste)
1/4 teaspoon black pepper (optional, to taste)
Directions
Add the dry pasta and milk to a large, deep skillet. Stir so all the pasta is mostly submerged in the milk.
Place the skillet over medium heat and bring the milk just to a gentle simmer, stirring often so the pasta doesn’t stick and the milk doesn’t scorch.
Once simmering, continue to cook the pasta in the milk for about 8–10 minutes, stirring frequently, until the pasta is al dente and the milk has thickened into a creamy sauce. If the skillet looks too dry before the pasta is done, add a splash more milk or water, a few tablespoons at a time.
When the pasta is just tender, dump the canned tuna straight into the skillet, including the liquid from the cans. Use a spoon to break the tuna into chunks and gently fold it through the creamy pasta.
Sprinkle in the shredded cheddar cheese and stir until it melts smoothly into the sauce. The mixture should look creamy and slightly loose; it will thicken a bit as it sits.
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