Name: Cheesy Tuna Casserole
Prep time: 5 min
Cook time: 45 min
Total time: 55 min
Ingredients: 300 g (10.5oz) pasta; 1 tbsp olive oil; 1 cup frozen diced onion (1 onion peeled and diced); 1 cup frozen diced bell pepper (or I fresh one deseeded and diced); 1 tsp minced garlic; 1 tsp Greek seasoning (or dried oregano); 2 28oz diced tomatoes (2 X 400g); 2 X 120g (8.4oz) of tuna drained ( 2 x 120G); 6 oz (170g) mozzarella cheese or mixed with other cheese (shredded)

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This hearty warming Cheesy Tuna Casserole recipe is an easy pantry staple dinner you can whip up in less than an hour. It is great for meal prep and freezer friendly too.

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Sometimes you just need a belly full of creamy, cheesy deliciousness. Am I right?!?! And you can’t go wrong with an easy dish that combines your well-loved canned, frozen and dried goods with aaaaaaaaall the cheese.

Because easy dinners = we take back time to do more of the fun stuff.

So I got your back with this delectable, hearty and cozy Cheesy Tuna Casserole that comes together quickly with minimal prep. And bam, dinner gets to be the easiest thing you do all day.

What You’ll Need To Make This Easy Pantry Recipe

pasta
olive oil
frozen diced onion (or fresh)
frozen diced bell pepper (or fresh)
minced garlic
Greek seasoning or dried oregano
diced tomatoes
canned tuna
mozzarella cheese or mixed with other cheese

How To Make Cheesy Tuna Casserole

Preheat the oven to 400F / fan assisted 180C / 200C / gas 6.
Cook the pasta according to the packet instructions until almost done. You want the pasta al dente.
Heat the oil in a frying pan, add the diced onion and pepper cook for about 6 minutes until soft.
Stir in the garlic for 30 seconds until fragrant and mix in the diced tomatoes and simmer for 20 minutes.
Remove from the heat, stir in the cooked pasta and tuna and transfer into a casserole dish.
Add the cheese on top and bake for 20 minutes until the cheese is melted.

Recipe Variations

change the vegetables such as adding/substituting with peas, mushrooms, broccoli, cauliflower, carrots, etc.
top the tuna fish casserole with panko, breadcrumbs, chips, or crispy noodles to add more crunch.
any type of pasta can work in a pinch, use what you have in your pantry.
Feel free to used canned salmon instead.

Meal Prep and Prep Ahead

Prep Ahead – Make ahead and refrigerate for up to 3 days in an airtight container.

Freeze – Follow the handy tips below on how to freeze this.

Let it cool before covering with foil and freezing.
Alternatively, freeze before baking. Be sure to thaw it fully before baking so it cooks evenly.
Store in the freezer for 3 months.

Thaw and Reheat

Thaw the cooked frozen tuna casserole in the fridge overnight.
Bake it at 400F / 200C/ gas 6 until it has been heated through.

Serving Suggestions

Other Easy Pantry Recipes

Weight Watchers Points

There are 6 Blue Plan SmartPoints in one serving of this.

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cheesy tuna casserole served in a bowl with a silver spoon

Print Recipe

5 from 5 votes

Cheesy Tuna Casserole

This tuna pasta melt is sure to be a family favorite.

Prep Time5 mins

Cook Time45 mins

Total Time55 mins

Course: Main

Cuisine: American, Mediterranean

Servings:

Calories: 229kcal

Author: Bintu Hardy

Ingredients

▢ 300 g (10.5oz) pasta
▢ 1 tbsp olive oil
▢ 1 cup frozen diced onion 1 onion peeled and diced
▢ 1 cup frozen diced bell pepper or I fresh one deseeded and diced
▢ 1 tsp minced garlic
▢ 1 tsp Greek seasoning or dried oregano
▢ 2 28oz diced tomatoes (2 X 400g)
▢ 2 X 120g (8.4oz) of tuna drained ( 2 x 120G)
▢ 6 oz (170g) mozzarella cheese or mixed with other cheese shredded

Instructions

Preheat the oven to fan assisted 180C / 200C / 400F / gas 6.
Cook the pasta according to the packet instructions, till almost almost done. You want the pasta al dente.
Heat the oil in a frying pan, add the onion and pepper cook for about 5 mins until soft.
Stir in the garlic for 30 seconds until fragrant and mix in the diced tomatoes and simmer for 15 minutes.
Remove from the heat, stir in the cooked pasta and tuna and transfer into a casserole dish.
Add the cheese one top and bake for 20 mins until the cheese in melted.

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