Tuna Pasta Bake Hearty Casserole

Featured in: Quick Family Meals

This hearty tuna pasta bake combines tender pasta with a creamy tomato and herb sauce, fresh peas, and protein-rich tuna. The dish is layered with cheese and breadcrumbs for a satisfying golden crust. It’s an easy, budget-friendly meal ideal for families, made mostly from pantry staples and ready in under an hour. Vegetarian options replace tuna with chickpeas for plant-based protein.

Updated on Wed, 19 Nov 2025 16:59:00 GMT
Golden, bubbly Tuna Pasta Bake, a comforting casserole with melted cheese and flavorful tuna. Pin
Golden, bubbly Tuna Pasta Bake, a comforting casserole with melted cheese and flavorful tuna. | potfuljoy.com

A hearty, budget-friendly casserole featuring protein-rich tuna (or chickpea pasta for extra plant-based protein), perfect for family dinners and made mostly from pantry staples.

I first made this tuna pasta bake on a busy weeknight when I needed something filling and simple. It quickly became a go-to dinner that everyone in my family requests again and again.

Ingredients

  • Pasta: 350 g (12 oz) dried pasta (regular or chickpea pasta)
  • Tuna: 2 x 160 g (5.6 oz) cans tuna in water or olive oil, drained
  • Peas: 1 cup (150 g) frozen peas
  • Chopped Tomatoes: 1 can (400 g/14 oz) chopped tomatoes
  • Onion: 1 medium onion, finely chopped
  • Garlic: 2 cloves garlic, minced
  • Olive Oil: 2 tbsp olive oil
  • Flour: 2 tbsp plain flour
  • Milk: 1 1/2 cups (375 ml) milk (dairy or unsweetened plant-based)
  • Cheese: 1 cup (100 g) grated cheese (cheddar or mozzarella, optional)
  • Oregano: 1/2 tsp dried oregano
  • Basil: 1/2 tsp dried basil
  • Salt and Pepper: To taste
  • Bread Crumbs: 1/2 cup (50 g) breadcrumbs
  • Parmesan: 1/4 cup (25 g) grated Parmesan or more cheddar (optional)

Instructions

Preheat Oven:
Preheat oven to 200°C (400°F).
Cook Pasta:
Cook pasta in a large pot of salted boiling water until just al dente. Drain and set aside.
Sauté Aromatics:
While pasta cooks, heat olive oil in a large skillet over medium heat. Add onion and cook 3–4 minutes until softened. Add garlic and cook 1 minute more.
Make Sauce:
Stir in flour, cook 1 minute, then gradually whisk in milk to form a smooth sauce. Simmer, stirring, until thickened (about 3–4 minutes).
Add Tomatoes and Herbs:
Stir in chopped tomatoes, oregano, basil, salt, and pepper. Simmer 3–5 minutes.
Mix in Protein and Cheese:
Add drained tuna, peas, and half the grated cheese. Stir to combine.
Combine with Pasta:
Add cooked pasta and mix gently.
Prepare for Baking:
Pour mixture into a greased baking dish. Sprinkle with remaining cheese, breadcrumbs, and Parmesan (if using).
Bake:
Bake 20–25 minutes until bubbly and golden on top.
Rest:
Let cool slightly before serving.
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| potfuljoy.com

My kids love to help sprinkle the cheese and breadcrumbs on top. Sharing this dish at family dinners always brings smiles to the table.

Serving Suggestions

Serve tuna pasta bake hot with a crisp green salad and a slice of crusty bread for a perfectly balanced meal.

Allergen Info

The recipe contains fish, dairy, and gluten. Use gluten-free pasta and breadcrumbs or plant-based cheese and milk to adapt for dietary needs. Always check ingredient labels for allergy concerns.

Nutritional Information

This pasta bake provides approximately 480 calories, 13 g total fat, 60 g carbohydrates, and 29 g protein per serving.

A steaming, creamy Tuna Pasta Bake, filled with tuna, vegetables, and a rich, cheesy sauce. Pin
A steaming, creamy Tuna Pasta Bake, filled with tuna, vegetables, and a rich, cheesy sauce. | potfuljoy.com

This comforting casserole is perfect for busy nights and can be easily customized. Enjoy the leftovers for lunch the next day!

Recipe Q&A

Can I substitute chickpea pasta for regular pasta?

Yes, chickpea pasta works well and adds extra plant-based protein while keeping the dish hearty and filling.

How can I make this dish vegetarian?

Omit the tuna and add a can of drained chickpeas or extra vegetables like spinach or bell peppers for more nutrition.

What cheese types can be used for topping?

Cheddar, mozzarella, or Parmesan all melt nicely to create a golden, bubbling crust on top of the bake.

Is it possible to prepare this recipe gluten-free?

Yes, use gluten-free pasta and breadcrumbs to accommodate gluten sensitivities without compromising texture.

What side dishes pair well with this pasta bake?

Serve alongside a crisp green salad and crusty bread for a balanced and satisfying meal.

Tuna Pasta Bake Hearty Casserole

A comforting tuna pasta casserole with peas, tomatoes, and a golden cheese topping.

Preparation time
15 min
Cooking time
30 min
Total time
45 min


Difficulty Easy

Origin International

Yield 4 Servings

Dietary specifications None specified

Ingredients

Pasta

01 12 ounces dried pasta (regular or chickpea)

Protein & Pantry

01 2 cans (5.6 ounces each) tuna in water or olive oil, drained
02 1 cup frozen peas (150 grams)
03 1 can (14 ounces) chopped tomatoes
04 1 medium onion, finely chopped
05 2 cloves garlic, minced

Sauce

01 2 tablespoons olive oil
02 2 tablespoons plain flour
03 1 1/2 cups milk (dairy or unsweetened plant-based)
04 1 cup grated cheese (cheddar or mozzarella, optional)
05 1/2 teaspoon dried oregano
06 1/2 teaspoon dried basil
07 Salt and pepper, to taste

Topping

01 1/2 cup breadcrumbs (50 grams)
02 1/4 cup grated Parmesan or additional cheddar cheese (optional)

Instructions

Step 01

Preheat oven: Set oven temperature to 400°F.

Step 02

Cook pasta: Boil pasta in salted water until just al dente. Drain and set aside.

Step 03

Sauté aromatics: Heat olive oil in a large skillet over medium heat. Cook onion until softened, about 3 to 4 minutes, then add garlic and cook 1 more minute.

Step 04

Prepare sauce base: Stir in flour and cook for 1 minute. Gradually whisk in milk to create a smooth sauce and simmer, stirring until thickened, approximately 3 to 4 minutes.

Step 05

Add seasonings and tomatoes: Incorporate chopped tomatoes, oregano, basil, salt, and pepper. Simmer gently for 3 to 5 minutes.

Step 06

Combine protein and vegetables: Mix in drained tuna, peas, and half of the grated cheese.

Step 07

Add pasta: Fold cooked pasta into the sauce mixture carefully.

Step 08

Assemble in baking dish: Transfer mixture to a greased baking dish and evenly top with remaining cheese, breadcrumbs, and Parmesan if using.

Step 09

Bake: Cook for 20 to 25 minutes until bubbly and golden on top.

Step 10

Rest before serving: Allow to cool slightly before serving.

Required equipment

  • Large pot
  • Skillet or saucepan
  • Whisk
  • 9x13 inch baking dish
  • Grater

Allergen information

Review each ingredient to identify potential allergens and if uncertain, please consult a healthcare professional.
  • Contains fish, dairy, and gluten; substitutes recommended for allergen-sensitive individuals.

Nutritional values (per serving)

These values are provided as a general guide only and shouldn't replace professional medical advice.
  • Calories: 480
  • Fat: 13 g
  • Carbs: 60 g
  • Protein: 29 g