What Vegetables Go in Tuna Casserole? (11 Best Veggies)

Knowing what vegetable goes with tuna casserole can mean the difference between a soggy, bland dish and a delicious, hearty meal.

And while you may be tempted to just go with the classics (peas and carrots, I’m looking at you), I’m here to show you that there are so many other delicious options out there.

So, whether you’re looking for something classic or something new, read on for my top 11 picks.

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What Vegetables Go in Tuna Casserole

What Vegetables Go in Tuna Casserole?

The best vegetables for tuna casserole are ones that can stand up to the strong flavors of the fish and the creamy sauce. Broccoli, carrots, and peas are all good choices. You can also add some chopped onion or garlic for extra flavor.

Still looking for ideas?

Then keep scrolling!

Here are 11 vegetables that go well in a tuna casserole:

1. Broccoli

Broccoli

Broccoli is known for being a healthy vegetable, but it is also delicious.

When I was a kid, my mom would make tuna casserole with peas and carrots, and I would pick out all of the broccoli.

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Now, as an adult, I love to add broccoli to my tuna casserole.

It adds a great flavor and texture to the dish.

You can add broccoli in a few different ways to your casserole.

You can mix it in with the other ingredients before you bake it, or you can top the casserole with broccoli before you serve it.

Either way, your family will love this delicious vegetable in their casserole.

2. Cauliflower

Cauliflower

Cauliflower is amazing at soaking up flavors, so it’s no surprise that it makes tuna casserole even tastier.

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You can add cauliflower to the recipe in a few different ways.

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One is to simply chop up some cauliflower into bite-sized pieces and mix it in with the rest of the ingredients.

Another way is to cook the cauliflower separately and then add it in at the end.

This allows you to really control how much flavor the cauliflower takes on.

If you want a more subtle flavor, just add the cooked cauliflower towards the end of cooking.

If you want a stronger flavor, add it in with all of the other ingredients at the beginning.

3. Carrots

Carrots

Carrots add color, texture, and sweetness to tuna casserole.

You can add them in different ways to change up the flavor and texture.

For example, you could shred them and add them to the top of the casserole for a crunchy topping, or you could dice them and add them into the mix.

You could also roast them whole and then slice them thin to layer into the casserole.

Carrots are a versatile vegetable that can be used in many different ways in tuna casserole.

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4. Peas

Peas

Peas are little balls of flavor that go great in tuna casserole.

You can add them whole, or you can mash them up and mix them into the sauce.

I like to add a little bit of mint to my peas, it really brightens up the flavor.

You could also experiment with other herbs like thyme or basil.

If you want to get really fancy, you could even roast your peas before adding them to the casserole.

5. Corn

canned corn

Corn adds sweetness and color in your casserole.

I like to add a can of corn that has been drained to my tuna casserole recipe.

You could also use frozen or fresh corn.

If you are using fresh or frozen, you will want to cook the corn first.

I usually just microwave it for a few minutes.

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Another way to add corn is to sprinkle some on top of the casserole before baking it.

This gives a nice crunch and color contrast on top of the casserole.

6. Green Beans

Green Beans

Green beans are one of the most used veggies regardless of the dish.

Tuna casserole is no different!

You can leave them whole, cut them into bite-sized pieces, or even mash them up and mix them in with the sauce.

Here are 3 tips for adding green beans to your tuna casserole:

  • If you want a bit of extra crunch, leave them whole or cut them into thick slices.
  • For a more traditional texture, cut the beans into small pieces or mash them up slightly.
  • If you want to get really creative, try mashing the beans and mixing them into the sauce for a unique twist on the classic dish.

7. Mushrooms

Mushrooms

Mushrooms are earthy, delicious, and go great in tuna casserole.

You can use any type of mushroom you like, but I think the best are button mushrooms, portobellos, or cremini mushrooms.

Just chop them up into bite-sized pieces and add them to the casserole when you would normally add the tuna.

You can also add some chopped mushrooms to the breadcrumb topping for a little extra flavor.

8. Celery

Celery

Celery has a leafy and earthy flavor that goes great in tuna casserole.

You can add it to the recipe in a few different ways.

One way is to chop it up and add it to the casserole along with the other ingredients.

Another way is to use it as a garnish on top of the casserole.

You can also use celery leaves as a garnish.

9. Onions

Red Onions

Onions add flavor like almost no other vegetable can.

They can be cooked in so many ways to bring out different flavors, and they pair well with other ingredients.

In a tuna casserole, they can be sauteed and added in with the other vegetables, or they can be chopped and added to the top as a garnish.

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You could even caramelize them to add a sweet touch.

10. Potatoes

Potatoes

Potatoes will make sure nobody goes home hungry from your tuna casserole dinner.

You can add diced potatoes, sliced potatoes, or even mashed potatoes to the recipe.

If you want to get really creative, try using different kinds of potatoes like sweet potatoes or Yukon golds.

Adding potato to tuna casserole is a great way to bulk up the meal and make it more filling.

Plus, who doesn’t love a good potato?

11. Sweet Potatoes

Sweet Potatoes

If regular old white potatoes aren’t doing it for you, try sweet potatoes in your tuna casserole.

They add a subtle sweetness that takes the dish to the next level.

You can leave them in chunks or dice them up into small pieces.

Another way to add sweet potatoes is to mash them and use them as a topping for the casserole.

This is especially delicious if you top it with some shredded cheese and put it under the broiler for a few minutes until bubbly and browned.

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what vegetable goes with tuna casserole

What Vegetables Go in Tuna Casserole? (11 Best Veggies)

I always want to make sure that my casserole is packed with nutrients, so I like to add a variety of veggies.
This list includes the 11 best veggies to add to your tuna casserole.
Prep Time 2 minutes
Cook Time 2 minutes
Total Time 4 minutes
Course Main Course, Vegetables
Cuisine American
Servings 4 people
Calories 31 kcal

Ingredients
  

  • Broccoli
  • Cauliflower
  • Carrots
  • Peas
  • Corn
  • Green Beans
  • Mushrooms
  • Celery
  • Onions
  • Potatoes
  • Sweet Potatoes

Instructions
 

  • Pick some of these veggies to add to your tuna casserole recipe.
  • Prepare the ingredients according to the recipe.
  • Enjoy in no time!
Keyword What Vegetables Go in Tuna Casserole