Cooking isn’t just about feeding the family; it’s about creating moments of comfort and joy. One dish that embodies this spirit is the classic tuna casserole. This Cheesy Tuna Casserole with Broccoli and Breadcrumb is pure comfort food that brings back memories of cozy family dinners. It’s simple yet satisfying, making it a perfect choice for everyone, from seasoned cooks to those just starting their culinary journey.
At its heart, this tuna casserole features a delightful blend of flavors and textures. You’ll find tender pieces of tuna, hearty cooked pasta—either elbow or egg noodles—vibrant broccoli florets, and creamy mushroom soup binding everything together. As it bakes, a layer of shredded cheese melts into the mix, creating an irresistible topping that pairs beautifully with the crunch of breadcrumbs. With just a hint of milk and seasoning to elevate the dish, this casserole is comforting both in taste and nostalgia.
Preparing this dish is a breeze, making it ideal for busy weeknights. You start by preheating your oven to 350°F (175°C). In a large bowl, you combine the drained tuna, cooked pasta, steamed broccoli, mushroom soup, shredded cheese, and milk. A quick mix ensures everything is coated well and seasoned just right. The mixture goes into a greased baking dish, topped with breadcrumbs, and a drizzle of olive oil if you like a bit of extra richness. Just bake it for about 25-30 minutes until it’s bubbly and golden brown. Once you let it cool slightly, you’ll be ready to dig in.
This dish is ideal for chilly nights, potlucks, or even simple family gatherings. With its rich flavors and warm essence, it’s sure to create a sense of home wherever it’s served.

Why You’ll Love This Cheesy Tuna Casserole with Broccoli and Breadcrumb
- Quick to Prepare: This casserole can be made in under an hour, perfect for those busy weeknights.
- Simple Ingredients: With a short list of easy-to-find ingredients, you likely already have most of them in your pantry.
- Comfort Food: This dish brings a warm, nostalgic feeling that many of us associate with family dinners.
- Customizable: You can easily change the ingredients to suit your taste or dietary needs.
- Leftover Friendly: The casserole keeps well, making it perfect for meal prep or enjoying leftovers.
Tuna Tips
When selecting tuna, look for higher-quality brands packed in water. Drained tuna should have a clean smell. It can be either chunk light or solid white, depending on your preference. Chunk light tuna has a milder flavor and is often more affordable, while solid white has a firmer texture. Always ensure that the can is not dented or rusty, as that could indicate spoilage. You can also opt for fresh tuna steaks, which you can grill or sear before adding to your casserole, but canned tuna offers a great convenience without compromising taste.
Options for Substitutions
- Pasta Type: Swap elbow macaroni for whole-grain pasta or gluten-free pasta for a healthier option.
- Vegetable Alternatives: Substitute broccoli with peas, spinach, or even chopped bell peppers for variety.
- Soup Variations: Use a different cream soup like cream of chicken or celery for a twist on flavor.
- Cheese Choices: Try using mozzarella, pepper jack, or any cheese you love instead of cheddar.
- Milk Alternatives: Substitute cow’s milk with almond, soy, or oat milk for dairy-free versions.
- Breadcrumbs: Use panko breadcrumbs or crushed crackers for a different texture.
Watch Out for These Mistakes
One of the common pitfalls when making tuna casserole is overcooking it. Baked casserole should be perfectly bubbly and just beginning to brown on top. Keep an eye on it during the last few minutes to prevent dried-out edges.
Another common mistake is seasoning too lightly. Tuna can have a mild taste, so don’t shy away from adding adequate salt and pepper. You might even consider including garlic powder, onion powder, or dried herbs to enhance the flavor.
Additionally, ensure that all your ingredients are at room temperature before mixing. Cold items could cause the casserole to cook unevenly. Mixing too aggressively can also break down the pasta and broccoli, resulting in a mushy texture.

What to Serve With Cheesy Tuna Casserole with Broccoli and Breadcrumb?
Pair this cheesy tuna casserole with a light side salad dressed in vinaigrette to balance out the richness. Additionally, serving some warm crusty bread can be a delightful way to soak up those delicious creamy flavors. You could also consider steamed green beans or a fresh fruit salad to add a pop of color and freshness to the meal.
Storage Instructions
Store: You can keep leftovers in an airtight container in the fridge for 3-4 days.
Freeze: If you want to save it for later, freeze the casserole for up to 3 months. Make sure to allow it to cool completely before transferring it to a freezer-safe container.
Reheat: To reheat, thaw overnight in the fridge if frozen. For stovetop reheating, just warm in a pan on low heat, stirring occasionally. In the microwave, heat in short bursts, stirring after each to ensure even heating.
Recipe Info
Preparation Time: 15 minutes
Cooking Time: 30 minutes
Total Time: 45 minutes
Level of Difficulty: Easy
Servings: Approximately 4-6 servings
Estimated Nutrition
Estimated nutrition for the whole recipe (without optional ingredients):
Calories: 1200-1500
Protein: 80-100g
Fat: 40-60g
Carbohydrates: 100-120g
Ingredients
- 1 can tuna, drained
- 2 cups cooked pasta (elbow or egg noodles)
- 1 cup broccoli florets, steamed
- 1 can cream of mushroom soup
- 1 cup shredded cheese (cheddar or your choice)
- 1/2 cup milk
- 1/2 cup breadcrumbs
- Salt and pepper to taste
- 1 tablespoon olive oil (optional)

Step-by-Step Instructions
Step 1: Preheat Oven and Prep Pan
Preheat your oven to 350°F (175°C). Grease a baking dish lightly with cooking spray or a bit of olive oil to prevent sticking.
Step 2: Combine the Ingredients
In a large bowl, mix together the drained tuna, cooked pasta, steamed broccoli, cream of mushroom soup, shredded cheese, and milk. Make sure everything is combined well and seasoned with salt and pepper to taste.
Step 3: Transfer to Baking Dish
Once your mixture is well combined, transfer it to the prepared baking dish. Spread it evenly so it cooks uniformly.
Step 4: Add Toppings
Sprinkle the breadcrumbs evenly over the top of the casserole. If you’re using it, drizzle a little olive oil on top to help achieve a golden, crispy crust.
Step 5: Bake the Casserole
Place the casserole in the preheated oven and bake for 25-30 minutes. Watch for it to bubble and turn golden brown on top.
Step 6: Cool and Serve
Remove it from the oven, and let it cool for a few minutes before serving. Enjoy this hearty dish with your loved ones.
In summary, this Cheesy Tuna Casserole with Broccoli and Breadcrumb is an inviting meal that embodies comfort food at its finest. It is not only easy to make but also customizable and perfect for feeding any crowd. I invite you to try this recipe, and please share your thoughts and adaptations in the comments! Happy cooking!

Cheesy Tuna Casserole with Broccoli and Breadcrumb
Ingredients
Method
- Preheat your oven to 350°F (175°C). Grease a baking dish lightly with cooking spray or a bit of olive oil.
- In a large bowl, combine the drained tuna, cooked pasta, steamed broccoli, cream of mushroom soup, shredded cheese, and milk. Mix well and season with salt and pepper.
- Transfer the mixture to the prepared baking dish, spreading it evenly.
- Sprinkle breadcrumbs evenly over the top and drizzle with olive oil if using.
- Place the casserole in the preheated oven and bake for 25-30 minutes until bubbly and golden brown.
- Remove from the oven and let it cool for a few minutes before serving.