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.
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.