Cheesy Corned Beef Casserole Bake Recipe

It’s 5 PM. You’re staring into the fridge. The family is hungry. You need a hero.

I’ve been there more times than I can count. That’s why I live for recipes like this Cheesy Corned Beef Casserole Bake. It’s my weeknight secret weapon, much like a hearty cheesy mashed potato and ground beef casserole.

This dish is pure comfort. It’s fast, filling, and uses simple stuff you probably have right now. Let’s turn that “what’s for dinner” panic into a victory.

Recipe Overview

• Cuisine: American Comfort Food
• Category: Casserole Bake
• Prep Time: 15 minutes
• Cook Time: 30 minutes
• Total Time: 45 minutes
• Servings: 6

Ultimate Guide to Cheesy Corned Beef Casserole Bake

Why is this the only guide you need? Because I’m a busy cook, just like you. I don’t have time for fussy steps.

This guide gets you maximum flavor for minimum effort. We’re talking one dish, simple ingredients, and a result that tastes like you cooked all day.

It combines salty corned beef, tender pasta, and a creamy, cheesy sauce that bakes into pure gold. It’s the definition of a no-stress family dinner.

The Simple Ingredients

This is the beauty part. Most of this lives in your pantry or fridge. No special trips to the store needed.

• 8 oz elbow macaroni or small shell pasta
• 1 tbsp olive oil or butter
• 1 small onion, diced
• 2 cloves garlic, minced
• 1 (12 oz) can corned beef, broken into chunks
• 1 (10.5 oz) can cream of mushroom soup
• 1 cup milk
• 1 cup sour cream
• 1 tsp mustard (yellow or Dijon)
• 2 cups shredded Swiss cheese, divided
• 1/2 cup shredded cheddar cheese (for topping)
• 1/2 cup breadcrumbs or crushed crackers (optional, for crunch)

Let’s Get Cooking! (The Step-by-Step)

Ready? Grab a big pot and a baking dish. We’re about to make magic happen in under an hour.

1. Preheat your oven to 375°F (190°C). Grease a 9×13 inch baking dish. This is your only dish for baking!
2. Cook the pasta. Boil a pot of salted water and cook your elbow macaroni according to the package directions for al dente. Drain it and set it aside.
3. While the pasta cooks, grab a large skillet. Heat the oil or butter over medium heat. Add the diced onion and cook for 4-5 minutes until soft.
4. Add the minced garlic and cook for just 1 more minute until fragrant. Don’t let it burn!
5. Turn the heat down to low. Add the chunks of corned beef to the skillet. Stir and break it up a bit with your spoon. Let it warm through for about 2 minutes.
6. In a large mixing bowl, combine the cream of mushroom soup, milk, sour cream, and mustard. Whisk it until it’s smooth.
7. Stir in 1 1/2 cups of the shredded Swiss cheese. Add the cooked pasta and the corned beef mixture from the skillet. Mix everything together really well.
8. Pour this cheesy pasta mix into your greased baking dish. Spread it out evenly.
9. Top with the remaining 1/2 cup Swiss cheese, the cheddar cheese, and breadcrumbs if you’re using them. This creates the perfect crispy top.
10. Bake for 25-30 minutes. You want it bubbly around the edges and golden brown on top. Let it sit for 5 minutes before serving. This helps it set!

What to Serve With This Dish

This casserole is a full meal by itself. But if you want to round it out, keep it simple.

Recipe

Cheesy Corned Beef Casserole Bake Recipe

Make Cheesy Corned Beef Casserole Bake Recipe with simple ingredients and clear steps. Prep, cook, and enjoy—perfect for cozy evenings.

Author: Jennifer McDonallds

Prep: 15 min | Cook: 30 min | Total: 45 min

Serves: - 4 + bites

★ Rate 🖨 Print

The Simple Ingredients

• 8 oz elbow macaroni or small shell pasta
• 1 tbsp olive oil or butter
• 1 small onion, diced
• 2 cloves garlic, minced
• 1 (12 oz) can corned beef, broken into chunks
• 1 (10.5 oz) can cream of mushroom soup
• 1 cup milk
• 1 cup sour cream
• 1 tsp mustard (yellow or Dijon)
• 2 cups shredded Swiss cheese, divided
• 1/2 cup shredded cheddar cheese (for topping)
• 1/2 cup breadcrumbs or crushed crackers (optional, for crunch)

Let’s Get Cooking! (The Step-by-Step)

1

Preheat your oven to 375°F (190°C). Grease a 9×13 inch baking dish. This is your only dish for baking!

2

Cook the pasta. Boil a pot of salted water and cook your elbow macaroni according to the package directions for al dente. Drain it and set it aside.

3

While the pasta cooks, grab a large skillet. Heat the oil or butter over medium heat. Add the diced onion and cook for 4-5 minutes until soft.

4

Add the minced garlic and cook for just 1 more minute until fragrant. Don’t let it burn!

5

Turn the heat down to low. Add the chunks of corned beef to the skillet. Stir and break it up a bit with your spoon. Let it warm through for about 2 minutes.

6

In a large mixing bowl, combine the cream of mushroom soup, milk, sour cream, and mustard. Whisk it until it’s smooth.

7

Stir in 1 1/2 cups of the shredded Swiss cheese. Add the cooked pasta and the corned beef mixture from the skillet. Mix everything together really well.

8

Pour this cheesy pasta mix into your greased baking dish. Spread it out evenly.

9

Top with the remaining 1/2 cup Swiss cheese, the cheddar cheese, and breadcrumbs if you’re using them. This creates the perfect crispy top.

10

Bake for 25-30 minutes. You want it bubbly around the edges and golden brown on top. Let it sit for 5 minutes before serving. This helps it set!

Notes

Enjoy your homemade Cheesy Corned Beef Casserole Bake Recipe!

Nutrition Information

Calories: ~520

Carbohydrates: 38g

Protein: 28g

Fat: 28g

Saturated Fat: 14g

Cholesterol: 95mg

Sodium: 1150mg

Fiber: 2g

Sugar: 5g

Did You Make This?

Leave a review and tag us on social media!

A bag of pre-washed salad greens with a quick vinaigrette is my go-to. It adds a fresh crunch. For another low-carb, veggie-packed option that’s just as cheesy and satisfying, check out this cheesy cauliflower and ground beef bake.

Steamed green beans or broccoli florets are another fast side. Just pop them in the microwave while the casserole bakes. Done!

Make This Recipe Your Own (Quick Swaps)

Got a different cheese? A different pasta? No problem. This recipe is super friendly to swaps.

Try shredded Gruyère or a sharp white cheddar instead of Swiss. Use cream of celery or cream of chicken soup if that’s what’s in your cupboard.

For the pasta, any small shape works. Try rotini, cavatappi, or even egg noodles. You can also add a cup of frozen peas or diced carrots to the mix for extra veggies.

How to Store Leftovers (If You Have Any!)

Cover the baking dish tightly with foil or plastic wrap. You can also move portions to airtight containers.

It keeps in the fridge for 3-4 days. Reheat single servings in the microwave. For a larger portion, cover it with foil and warm it in a 350°F oven until hot.

You can freeze this casserole, too. Assemble it in a freezer-safe dish but don’t bake it. Wrap it tightly. Thaw in the fridge overnight, then bake as directed, adding a few extra minutes.

NUTRITION INFORMATION

• Calories: ~520
• Carbohydrates: 38g
• Protein: 28g
• Fat: 28g
• Saturated Fat: 14g
• Cholesterol: 95mg
• Sodium: 1150mg
• Fiber: 2g
• Sugar: 5g

*This is an estimate per serving. Values can change based on your specific ingredients and swaps.

FREQUENTLY ASKED QUESTIONS

Can I use fresh corned beef instead of canned?

You can, but it adds major time. You’d need to cook a brisket for hours first. The canned version is the ultimate shortcut that makes this recipe work for busy nights.

My family doesn’t like Swiss cheese. What’s the best substitute?

No worries! Shredded Monterey Jack or even a mild provolone are great swaps. They melt beautifully and have a milder flavor everyone loves.

Can I make this casserole ahead of time?

Absolutely! Assemble the whole dish, cover it, and refrigerate for up to 24 hours. When you’re ready, bake it straight from the fridge. Just add 5-10 extra minutes to the bake time.

See? I told you we could save dinner. This casserole is your ticket to a calm, delicious weeknight. It’s the comfort food hug we all need, without the all-day project. If you love the combination of ground beef and melty cheese, this easy cheesy cauliflower ground beef bake is another fantastic dinner winner to try.

Now you’ve got a new tool in your busy-cook toolbox. A cheesy, hearty, crowd-pleasing bake that works every single time. Go try this and win back your weeknight! Let me know how it goes by leaving a comment and rating below!