Tuna and Vegetable Casserole

Delicious and simple meals

Video Stats

Host: Delicious and simple meals
Published: Jun 27, 2025
Views: 4.3k

Recipe Overview

Prep: 20 min
Cook: 40 min
Difficulty: Intermediate
Serves: 4

Overview

This Tuna and Vegetable Casserole is a delightful dish that combines comfort and flavor in every bite. The recipe begins with a simple mixture of eggs, cream, and milk, which forms the base of the casserole. Layering is key here, as you alternate between tender potatoes, flaky tuna, and sautéed vegetables, creating a beautiful presentation that is as pleasing to the eye as it is to the palate.

The use of cheddar cheese not only adds richness but also creates a golden, bubbly crust that is hard to resist. As the casserole bakes, the flavors meld together, resulting in a dish that is both hearty and satisfying. This recipe is perfect for family dinners or gatherings, offering a warm and inviting meal that everyone will enjoy.

Pair it with a fresh salad for a complete meal that balances the richness of the casserole with crisp, refreshing flavors. This dish is sure to become a favorite in your household, bringing a sense of nostalgia and comfort with every serving.

Recipe Details

Steps & Tips

1
00:04

Break two eggs into a bowl.

2
00:16

Add 1 teaspoon of salt, 1 teaspoon of black pepper, and 1 teaspoon of oregano.

3
00:27

Stir with a whisk until everything is well combined.

4
00:54

Pour in 3 fluid ounces of cream and 3 fluid ounces of milk.

5
01:13

Add 3 ounces of flour and 1 teaspoon of baking powder, then stir until smooth.

6
02:09

Dice three medium-sized potatoes into medium-sized cubes.

02:20

Tip: Dice potatoes small enough to cook quickly but firm enough to hold their shape.

7
03:15

Put diced potatoes in a saucepan, cover with water, and add 1 teaspoon of salt.

8
03:41

Cover with a lid and cook until soft.

9
04:48

Place a frying pan over medium heat and melt 60 grams of butter.

10
05:02

Chop one white onion.

11
06:13

Add the onion to the pan and sauté until translucent.

12
06:42

Grate two cloves of garlic on a mini grater.

13
07:15

Add the grated garlic to the pan and stir gently.

14
07:37

Chop a bunch of fresh spinach finely.

15
08:58

Add chopped spinach to the pan.

16
09:06

Stir-fry until the spinach is soft.

17
09:40

Open a can of corn and add it to the pan.

18
10:10

Add half a teaspoon of salt and half a teaspoon of black pepper, then stir and cook for 2 to 3 minutes.

10:30

Tip: Check potatoes by poking them with a knife or fork; if they slide in easily, they're ready.

19
10:54

Open three cans of tuna and transfer to a glass bowl.

20
11:26

Use a fork to mash the tuna into fine flakes.

11:35

Tip: Mash tuna into fine flakes to ensure it blends evenly into the casserole.

21
12:00

Check on the potatoes and remove from heat when ready.

22
12:04

Take a baking dish and brush it with olive oil.

12:07

Tip: Brush the baking dish with olive oil to prevent sticking.

23
12:17

Spoon half of the potatoes into the dish.

24
12:55

Spoon half of the tuna on top of the potatoes.

25
13:29

Spoon half of the vegetables over the tuna.

26
14:17

Repeat with the remaining potatoes, tuna, and vegetables.

27
15:53

Pour the prepared egg mixture evenly over the entire dish.

28
16:24

Grate 9 ounces of cheddar cheese.

16:52

Tip: Sprinkle cheese generously over the casserole for a rich flavor.

29
16:54

Sprinkle the cheese generously over the casserole.

30
17:05

Preheat the oven to 360°F (180°C).

31
17:14

Place the casserole inside and bake for 40 minutes.

32
17:23

Take a bowl and add a generous handful of salad greens.

33
17:35

Slice one cucumber into rings.

34
18:27

Transfer sliced cucumber to the bowl.

35
18:33

Slice one orange bell pepper into thin strips.

36
19:30

Add sliced bell pepper to the salad.

37
19:36

Slice one tomato into wedges.

38
20:22

Slice one shallot into thin half rings.

39
20:49

Add sliced shallot to the bowl.

40
20:53

In a small bowl, combine 2 tablespoons of olive oil, 1 tablespoon of lemon juice, 1 teaspoon of mustard, 1 teaspoon of salt, 1 teaspoon of black pepper, and 1 teaspoon of oregano.

21:31

Tip: Stir dressing until well blended for a uniform flavor.

41
21:33

Stir until well blended.

42
21:59

Pour the dressing over the salad.

43
22:02

Toss gently to coat all the ingredients evenly.

44
22:30

Take the casserole out of the oven and cut a generous portion.

45
23:36

Place the portion on a plate.

46
23:46

Add a serving of fresh salad on the side.

Ingredients

Serves: 4
Cream120 ml
Milk120 ml
Flour120 g
Butter60 g
Onion1
Garlic2 cloves
Spinach1 bunch
Corn1 can
Cheddar Cheese250 g
Allergen Alerts

Ingredient: Dairy

    → Substitution: Almond Milk

Ingredient: Eggs

    → Substitution: Flaxseed Meal + Water

Ingredient: Fish

    → Substitution: Chickpeas

Nutrition

Calories
480
kcal per serving
Protein
30
per serving
Carbs
45
per serving

Skill Level

Skill Level Intermediate
Beginner Intermediate Advanced

Frequently asked questions

Below you will find answers to the most common questions about this recipe.

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Interesting Tidbits

  • Using fresh spinach adds a vibrant color and nutritional boost to the casserole.
  • Dicing potatoes into uniform cubes ensures even cooking and texture.
  • Mashing tuna into fine flakes helps it blend seamlessly into the casserole.
  • Baking the casserole creates a deliciously cheesy crust on top.