Tuna Spaghetti Casserole

Take comfort food to the next level with this creamy and satisfying Tuna Spaghetti Casserole—a hearty blend of tender spaghetti, savory tuna, and a rich cream of mushroom sauce. This family-friendly dish is elevated with pops of sweetness from frozen peas, a golden breadcrumb topping, and plenty of melty cheddar cheese. Quick to prepare with a 15-minute prep time and baked to bubbly perfection in just 30 minutes, it’s an ideal recipe for busy weeknights or cozy gatherings. Bursting with flavor and texture, this casserole brings together pantry staples like canned tuna and breadcrumbs with fresh touches like sautéed onion and parsley for a homestyle meal that’s as easy as it is delicious. Serve it warm and let its creamy, cheesy goodness become an instant classic at your dining table!

Nutriscore Rating: 66/100

Prep Time:15 mins

Cook Time:30 mins

Total Time:45 mins

Servings: 6

Ingredients

• 12 oz spaghetti
• 2 5 oz cans canned tuna, drained
• 2 10.5 oz cans cream of mushroom soup
• 1 cup milk
• 2 cups shredded cheddar cheese
• 1 cup frozen peas
• 1 onion, finely chopped
• 2 tbsp unsalted butter
• 1 cup breadcrumbs
• 1 tsp garlic powder
• 1 tsp dried parsley
• 0.5 tsp salt
• 0.25 tsp black pepper

Directions

Step 1

Preheat your oven to 375°F (190°C).

Step 2

Cook the spaghetti in a large pot of salted boiling water according to the package instructions until al dente, then drain and set aside.

Step 3

In a large mixing bowl, combine the cream of mushroom soup, milk, 1 1/2 cups of shredded cheddar cheese, garlic powder, parsley, salt, and black pepper. Stir until smooth and well combined.

Step 4

Melt 1 tablespoon of butter in a skillet over medium heat and sauté the chopped onion until soft and translucent, about 3-4 minutes.

Step 5

Add the cooked onion, drained tuna, and frozen peas to the soup mixture, and stir to combine thoroughly.

Step 6

Fold the cooked spaghetti into the mixture, ensuring the pasta is fully coated in the creamy sauce.

Step 7

Lightly grease a 9x13-inch baking dish with butter or non-stick cooking spray. Pour the spaghetti mixture into the dish, spreading it out into an even layer.

Step 8

Sprinkle the remaining 1/2 cup of shredded cheddar cheese evenly over the top.

Step 9

In a small bowl, melt the remaining 1 tablespoon of butter. Mix it with the breadcrumbs, then sprinkle the breadcrumb mixture evenly over the cheese layer.

Step 10

Place the casserole in the preheated oven and bake for 25-30 minutes, or until the top is golden brown and the sauce is bubbling around the edges.

Step 11

Remove from the oven and let the casserole cool for 5 minutes before serving.

Nutrition Facts

Serving size	2104.1 grams (2104.1g)

Amount per serving	% Daily Value*
Calories	3084

Total Fat 136.40g	175%
Saturated Fat 74.70g	374%
Polyunsaturated Fat 9.20g
Cholesterol 458mg	153%
Sodium 7750mg	337%
Total Carbohydrate 278.40g	101%
Dietary Fiber 22.10g	79%
Total Sugars 52.20g
Protein 196.60g	393%

Vitamin D 1038IU	5190%
Calcium 2543mg	196%
Iron 19mg	104%
Potassium 2462mg	52%

*The % Daily Value tells you how much a nutrient in a serving of food contributes to a daily diet. 2,000 calories a day is used for general nutrition advice.

Source of Calories

Fat: 39.3%

Protein: 25.1%

Carbs: 35.6%