Hearty Tuna Pasta Bake

Featured in: Weeknight Dinners

This comforting dish combines tender pasta, protein-rich tuna, and sweet peas in a creamy tomato sauce infused with herbs. Topped with cheese and golden breadcrumbs, it bakes to a bubbly, flavorful casserole perfect for weeknight meals. Adapt easily by swapping tuna for chickpeas for a plant-based version, and add veggies like spinach or bell peppers to boost nutrition. Ready in under an hour, it uses pantry staples for convenience without sacrificing taste.

Updated on Wed, 19 Nov 2025 14:36:00 GMT
Golden, bubbly tuna pasta bake fresh out of the oven, topped with crispy breadcrumbs and cheese. Save to Pinterest
Golden, bubbly tuna pasta bake fresh out of the oven, topped with crispy breadcrumbs and cheese. | yummywithmia.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.

When I first made this tuna pasta bake it quickly became a weekday favorite in our home thanks to its simplicity and crowd-pleasing flavors. It was especially handy during busy weeks when we wanted a meal everyone could enjoy without fuss.

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
  • Breadcrumbs: 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 Onion & Garlic:
Heat olive oil in a large skillet over medium heat. Add onion and cook 3 to 4 minutes until softened. Add garlic and cook 1 minute more.
Make Sauce Base:
Stir in flour and cook 1 minute then gradually whisk in milk to form a smooth sauce. Simmer stirring until thickened (about 3 to 4 minutes).
Add Tomatoes & Herbs:
Stir in chopped tomatoes oregano basil salt and pepper. Simmer 3 to 5 minutes.
Combine Protein & Veggies:
Add drained tuna peas and half the grated cheese. Stir to combine.
Mix 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 to 25 minutes until bubbly and golden on top.
Serve:
Let cool slightly before serving.
A comforting baked tuna pasta casserole with visible chunks of tuna and peas inside a creamy sauce. Save to Pinterest
A comforting baked tuna pasta casserole with visible chunks of tuna and peas inside a creamy sauce. | yummywithmia.com

This tuna pasta bake has become a staple at our family table especially when everyone gathers for a comforting dinner. Its easy preparation means even younger kitchen helpers can get involved making it a true team effort in our home.

Required Tools

Large pot skillet whisk baking dish (approx. 9x13 in/23x33 cm) and grater are all you need to prepare this casserole with ease.

Allergen Information

This dish contains fish (tuna) dairy (cheese milk) and gluten (pasta breadcrumbs). For gluten-free or dairy-free diets use suitable substitutes and always check ingredient labels if allergies are a concern.

Nutritional Information

Each serving provides approximately 480 calories 13 g total fat 60 g carbohydrates and 29 g protein making it a balanced and satisfying main dish.

Close-up shot shows a bubbling, cheesy tuna pasta bake with flavorful, rich textures. Save to Pinterest
Close-up shot shows a bubbling, cheesy tuna pasta bake with flavorful, rich textures. | yummywithmia.com

Enjoy your tuna pasta bake fresh from the oven for a cozy and inexpensive all-in-one dinner. The leftovers reheat beautifully for another easy meal tomorrow.

Common Recipe Questions

Can I substitute chickpea pasta for regular pasta?

Yes, chickpea pasta works well and adds extra plant-based protein while maintaining a similar texture and taste.

How can I make this dish vegetarian?

Simply replace tuna with drained chickpeas or extra vegetables like spinach or bell peppers for a delicious vegetarian option.

Is it possible to make this dish gluten-free?

Use gluten-free pasta and breadcrumbs as substitutes to maintain the same delicious texture without gluten.

What type of cheese is best for topping?

Cheddar or mozzarella provide a creamy melt, while Parmesan adds a savory, slightly nutty finish to the topping.

How do I ensure the sauce is smooth and thick?

Gradually whisk in milk to the flour and oil mixture, stirring continuously to prevent lumps and cook until the sauce thickens.

Hearty Tuna Pasta Bake

A creamy pasta casserole with tuna, tomatoes, peas, and cheese for a simple, satisfying meal.

Prep Time
15 minutes
Cooking Duration
30 minutes
Overall Time
45 minutes
Created by Mia

Recipe Type Weeknight Dinners

Skill Level Easy

Culinary Origin International

Total Output 4 Portion Size

Dietary Preferences None specified

What You'll Need

Pasta

01 12 oz dried pasta (regular or chickpea pasta)

Protein & Pantry

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

Sauce

01 2 tbsp olive oil
02 2 tbsp plain flour
03 1 1/2 cups milk (dairy or unsweetened plant-based, 375 ml)
04 1 cup grated cheese (cheddar or mozzarella), optional
05 1/2 tsp dried oregano
06 1/2 tsp dried basil
07 Salt and pepper, to taste

Topping

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

Steps to Follow

Step 01

Preheat oven: Set oven temperature to 400°F.

Step 02

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

Step 03

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

Step 04

Make sauce base: Whisk in flour and cook for 1 minute. Gradually add milk, stirring constantly, until sauce thickens, about 3-4 minutes.

Step 05

Incorporate tomatoes and herbs: Add chopped tomatoes, oregano, basil, salt, and pepper. Simmer for 3-5 minutes.

Step 06

Combine protein and vegetables: Stir in drained tuna, frozen peas, and half of the grated cheese until evenly mixed.

Step 07

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

Step 08

Assemble bake: Transfer mixture into a greased 9x13 inch baking dish. Sprinkle remaining cheese, breadcrumbs, and Parmesan on top.

Step 09

Bake casserole: Bake for 20-25 minutes until the topping is golden and the dish is bubbling.

Step 10

Cool before serving: Allow to cool slightly for easier serving.

Tools Required

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

Allergy Warnings

Please review individual ingredients for potential allergens and reach out to a healthcare professional if unsure.
  • Contains fish, dairy, and gluten; substitute ingredients as needed for allergies.

Nutritional Info (per serving)

These details are for reference only and shouldn't replace professional medical consultation.
  • Calories Count: 480
  • Fats: 13 grams
  • Carbohydrates: 60 grams
  • Proteins: 29 grams