This Tuna and Potato Casserole with Mozzarella is a simple, comforting dish that combines tender mashed potatoes with a flavorful tuna and onion mixture, all topped with gooey melted mozzarella. The combination of creamy potatoes, savory tuna, and rich cheese makes this casserole a satisfying meal that can be enjoyed for lunch, dinner, or as a hearty side dish. It’s easy to make and comes together in less than an hour, making it perfect for busy weeknights or family gatherings.
Preparation, Cooking, and Total Times
Preparation Time: 20 minutes
Cooking Time: 40-45 minutes
Total Time: 1 hour
Servings: 4-6 servings
Cuisine: Comfort food, Casserole
Ingredients
1 onion, cut into half rings
5 medium potatoes, cut into cubes
1 tsp salt (for boiling potatoes)
2 canned tuna in brine, drained
2 tbsp tomato paste
1 ladle of potato broth (from cooking the potatoes)
20 g (0.7 oz) butter
Salt and black pepper, to taste
180 ml (6 fl oz) hot milk
60 g (2 oz) mozzarella, grated
Step-by-Step Cooking Directions
Step 1: Prep the Onion
Heat a little oil in a large frying pan over medium heat.
Cut the onion into half rings.
Add the onion to the pan and fry for about 5-7 minutes until softened and slightly golden.
Step 2: Cook the Potatoes
Peel and cut the potatoes into cubes.
Place the cubed potatoes in a pot and cover them with cold water.
Add 1 tsp salt to the water and bring it to a boil.
Once the water is boiling, reduce the heat to a simmer and cook the potatoes for about 15-20 minutes, or until they are tender when pierced with a fork.
Drain the potatoes, reserving some of the potato broth for the next step.
Step 3: Prepare the Tuna Mixture
While the potatoes are cooking, drain the brine from the canned tuna.
Add the tuna to the pan with the cooked onions.
Stir in 2 tbsp tomato paste and 1 ladle of potato broth from the boiled potatoes.
Mix well and cook for another 2-3 minutes over low heat, allowing the flavors to combine and the mixture to heat through.
Step 4: Mash the Potatoes
Once the potatoes are done cooking and drained, add the butter (20 g) to the hot potatoes.
Mash the potatoes until smooth, and season with salt and black pepper to taste.
Gradually add 180 ml hot milk to the mashed potatoes, stirring until the mixture is creamy and smooth.
Step 5: Assemble the Casserole
Preheat your oven to 190°C (375°F).
In a baking dish, start by placing a layer of the mashed potatoes on the bottom.
Top with a layer of the tuna and onion mixture, spreading it evenly.
Add another layer of mashed potatoes on top of the tuna mixture.
Top with the remaining tuna and onion mixture.
Step 6: Add the Mozzarella
Sprinkle grated mozzarella evenly over the top layer of the casserole.
The mozzarella will melt and form a delicious, golden crust as it bakes.
Step 7: Bake the Casserole
Place the casserole in the preheated oven and bake for 10-15 minutes, or until the cheese is melted, bubbly, and lightly golden on top.
Step 8: Serve
Once baked, remove the casserole from the oven and allow it to cool slightly before serving.
Serve warm, and enjoy the comforting, savory flavors of this hearty casserole.
Serving Suggestions
With a Side Salad: Pair this casserole with a green salad dressed with olive oil and vinegar for a light and fresh side.
Serve with Crusty Bread: This casserole goes wonderfully with a slice of crusty bread or a baguette to mop up the savory tuna mixture.
As a Main Course: This casserole makes a filling and satisfying main dish for lunch or dinner.
With Vegetables: Serve it with steamed or roasted vegetables like carrots, broccoli, or peas for a well-rounded meal.
Nutritional Information (Approximate per Serving)
Calories: 350-400
Carbohydrates: 40g
Fiber: 5g
Sugar: 5g
Protein: 20g
Fat: 18g
Sodium: 700mg
This casserole is rich in protein from the tuna and fiber from the potatoes and onions. It also provides a good amount of calcium and healthy fats from the mozzarella cheese and butter.
Origins and Popularity of the Recipe
The idea of combining tuna and potatoes in a casserole is widely popular in many Western and Mediterranean cuisines. The combination of potatoes and fish is a staple in many homes, providing a filling, hearty meal that is both budget-friendly and nutritious. This casserole has become a go-to recipe for using pantry staples like canned tuna and potatoes, making it a common choice for home cooks looking for quick, easy, and satisfying meals.
Advertisement
Reasons Why You’ll Love This Recipe
Comforting and Hearty: The combination of creamy mashed potatoes and a savory tuna filling makes this casserole a comforting, filling meal.
Budget-Friendly: With simple ingredients like canned tuna and potatoes, this dish is cost-effective while still being delicious.
Easy to Make: This recipe requires minimal prep and cooking time, making it a great option for busy weeknights.
Versatile: You can easily modify this casserole by adding other vegetables or herbs to suit your taste.
Health Benefits
Tuna: Rich in omega-3 fatty acids, which support heart health, and a great source of protein and vitamin D.
Potatoes: High in potassium, fiber, and vitamin C, potatoes are a nutrient-dense food that promotes digestive health and supports the immune system.
Mozzarella: A good source of calcium and protein, mozzarella contributes to bone health and muscle maintenance.
Onions: Contain antioxidants and compounds that support heart health and help fight inflammation.
Cooking Tips
Don’t Overcook the Potatoes: Make sure the potatoes are tender but not mushy when boiling. Overcooking can result in watery mashed potatoes.
Use Full-Fat Mozzarella: For a creamier and richer casserole, use full-fat mozzarella cheese. You can also experiment with other cheeses like cheddar or parmesan.
Customize the Tuna: Feel free to add extra ingredients to the tuna mixture, such as chopped olives, capers, or herbs like oregano or basil.
Leftovers: This casserole keeps well in the fridge for up to 3 days. Simply reheat in the oven for best results.
Variations to Try
Vegetarian Version: Skip the tuna and replace it with vegetables like spinach, mushrooms, or zucchini for a meatless option.
Add a Crunchy Topping: For extra texture, top the casserole with a layer of breadcrumbs or crushed crackers before baking.
Spicy Version: Add chopped chilies or cayenne pepper to the tuna mixture for a spicy kick.
Conclusion
This Tuna and Potato Casserole with Mozzarella is a delightful and hearty dish that combines the comforting flavors of mashed potatoes, savory tuna, and melted cheese. It’s a simple, satisfying meal that’s perfect for busy weeknights or casual gatherings. The recipe is versatile, easy to make, and can be customized with your favorite ingredients. Whether you’re looking for a filling main dish or a hearty side, this casserole will become a go-to recipe in your kitchen.
Frequently Asked Questions (FAQs)
Can I make this casserole ahead of time?
Yes, you can prepare the casserole ahead of time and store it in the fridge for up to 2 days. Just bake it when you’re ready to serve.
Can I use fresh potatoes instead of canned tuna?
You can swap the tuna for chicken, ground beef, or even tofu for a different protein source.
Can I freeze this casserole?
Yes, this casserole freezes well. Allow it to cool completely, then wrap tightly in plastic wrap or foil and freeze for up to 2 months. Reheat in the oven.
Can I use low-fat cheese?
Yes, you can use low-fat mozzarella or another reduced-fat cheese, though the texture may be slightly different.
How do I reheat leftovers?
Reheat the casserole in the oven at 180°C (350°F) for about 15 minutes or until heated through. You can also microwave individual servings.
Can I add vegetables to the casserole?
Yes, feel free to add peas, carrots, spinach, or other vegetables to the tuna mixture for added flavor and nutrition.
How do I make the casserole creamier?
For a creamier texture, add a little cream cheese or sour cream to the mashed potatoes.
What can I serve with this casserole?
Serve with a fresh green salad or some garlic bread for a well-rounded meal.
Is this recipe gluten-free?
Yes, this recipe is naturally gluten-free as long as you use a gluten-free flour for any thickening or substitutions.
Can I use a different type of fish instead of tuna?
Yes, you can use salmon, mackerel, or any other type of canned fish you prefer.
