Irish Cast Iron Skillet Corned Beef Colcannon Casserole Recipe

It’s 5 PM. You’re hungry. The family is hungry. You have zero time for a fancy boiled dinner.

But you still want something hearty, delicious, and totally satisfying. I hear you. That’s my life, too.

That’s why I created this Irish Cast Iron Skillet Corned Beef Colcannon Casserole. It’s your St. Patrick’s Day favorite, reimagined for any crazy weeknight. All in one pan. Maximum flavor, minimum effort. If you love easy, comforting casseroles, you should also try this Ultimate Ground Beef & Potato Casserole. Let’s do this.

Recipe Overview

• Cuisine: Irish-American
• Category: Main Dish
• Prep Time: 15 minutes
• Cook Time: 30 minutes
• Total Time: 45 minutes
• Servings: 4-6

Ultimate Guide to Irish Cast Iron Skillet Corned Beef Colcannon Casserole

This is the only guide you need. Why? Because it solves the busy cook’s biggest problems.

We’re combining two classic Irish dishes into one epic, easy bake. Tender corned beef, creamy colcannon potatoes, and melty cheese. All baked until golden and bubbly.

No boiling a brisket for hours. No fussing with multiple pots. We use deli corned beef for a massive shortcut. Your trusty cast iron skillet does the rest, from stovetop to oven. It’s a flavor powerhouse with a cleanup dream.

The Simple Ingredients

This is all about pantry and fridge staples. You might already have most of this!

• 1.5 lbs Yukon Gold potatoes, peeled and cubed
• 4 tablespoons butter, divided
• 1/2 cup milk or half-and-half
• 3/4 cup chopped green cabbage or kale
• 3 green onions, sliced
• 1 lb cooked deli corned beef, chopped
• 1 1/2 cups shredded Dubliner or sharp cheddar cheese, divided
• 1/2 teaspoon black pepper
• Salt to taste (the corned beef is salty, so go easy!)

Let’s Get Cooking! (The Step-by-Step)

Ready? Grab your skillet. This comes together incredibly fast.

1. Preheat your oven to 400°F (200°C). Place your empty 10-12 inch cast iron skillet inside to heat up. A hot skillet gives us a perfect crispy edge.
2. Boil the cubed potatoes in salted water for 12-15 minutes, until fork-tender. Drain them well.
3. Mash the potatoes in the pot with 3 tablespoons of butter and the milk. Stir in the chopped cabbage and green onions. This is your quick colcannon base. Set aside.
4. Carefully remove the hot skillet from the oven. Add the last tablespoon of butter and swirl to coat.
5. Spread half of the colcannon mixture in the bottom of the hot skillet. Top with all of the chopped corned beef. Sprinkle with 1 cup of the shredded cheese.
6. Dollop the remaining colcannon over the top. Spread it gently to cover. Top with the remaining 1/2 cup of cheese.
7. Bake for 25-30 minutes, until the cheese is melted and the top is golden brown with some crispy bits.
8. Let it cool for 5 minutes before serving. Dig in!

What to Serve With This Dish

This casserole is a full meal! But a quick side can make it even better.

Recipe

Irish Cast Iron Skillet Corned Beef Colcannon Casserole Recipe

Make Irish Cast Iron Skillet Corned Beef Colcannon Casserole Recipe with simple ingredients and clear steps. Prep, cook, and enjoy—perfect for cozy evenings.

Author: Emily Morgan

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

Serves: - 4 + bites

★ Rate 🖨 Print

The Simple Ingredients

• 1.5 lbs Yukon Gold potatoes, peeled and cubed
• 4 tablespoons butter, divided
• 1/2 cup milk or half-and-half
• 3/4 cup chopped green cabbage or kale
• 3 green onions, sliced
• 1 lb cooked deli corned beef, chopped
• 1 1/2 cups shredded Dubliner or sharp cheddar cheese, divided
• 1/2 teaspoon black pepper
• Salt to taste (the corned beef is salty, so go easy!)

Let’s Get Cooking! (The Step-by-Step)

1

Preheat your oven to 400°F (200°C). Place your empty 10-12 inch cast iron skillet inside to heat up. A hot skillet gives us a perfect crispy edge.

2

Boil the cubed potatoes in salted water for 12-15 minutes, until fork-tender. Drain them well.

3

Mash the potatoes in the pot with 3 tablespoons of butter and the milk. Stir in the chopped cabbage and green onions. This is your quick colcannon base. Set aside.

4

Carefully remove the hot skillet from the oven. Add the last tablespoon of butter and swirl to coat.

5

Spread half of the colcannon mixture in the bottom of the hot skillet. Top with all of the chopped corned beef. Sprinkle with 1 cup of the shredded cheese.

6

Dollop the remaining colcannon over the top. Spread it gently to cover. Top with the remaining 1/2 cup of cheese.

7

Bake for 25-30 minutes, until the cheese is melted and the top is golden brown with some crispy bits.

8

Let it cool for 5 minutes before serving. Dig in!

Notes

Enjoy your homemade Irish Cast Iron Skillet Corned Beef Colcannon Casserole Recipe!

Nutrition Information

Calories: ~450 per serving

Protein: 25g

Carbohydrates: 30g

Fat: 25g

Saturated Fat: 14g

Fiber: 3g

Sodium: 1200mg

Did You Make This?

Leave a review and tag us on social media!

Grab some hearty rye bread or soda bread from the store. Perfect for scooping.

A simple, tangy side salad cuts the richness. Mixed greens with a mustard vinaigrette is perfect. It takes 3 minutes to toss together.

Make This Recipe Your Own (Quick Swaps)

Make it work with what you’ve got. Flexibility is key for busy cooks.

No deli corned beef? Use leftover homemade corned beef. Or grab a can of corned beef from the pantry. It works in a pinch! For another fantastic ground beef and potato option, check out this hearty Hobo Casserole.

Swap the cabbage for kale, spinach, or even frozen peas. Any green you like will add that fresh pop.

Change up the cheese. Swiss, Gruyère, or even a pepper jack would be amazing here.

How to Store Leftovers (If You Have Any!)

This reheats like a dream. Let it cool completely.

Store it covered in the fridge for up to 4 days. Reheat individual portions in the microwave. For the best crispy top, reheat in a 350°F oven until warm.

NUTRITION INFORMATION

• Calories: ~450 per serving
• Protein: 25g
• Carbohydrates: 30g
• Fat: 25g
• Saturated Fat: 14g
• Fiber: 3g
• Sodium: 1200mg

*This is an estimate. Values will vary based on your specific ingredients.

FREQUENTLY ASKED QUESTIONS

Can I make this without a cast iron skillet?

Yes! Use any oven-safe skillet or a 9×13 baking dish. Just preheat the dish in the oven if you can for a similar crust.

Can I prepare this casserole ahead of time?

Absolutely. Assemble the whole thing, cover, and refrigerate for up to a day. Add 5-10 minutes to the bake time since it will be cold.

Is this like a corned beef hash?

It’s the baked, cheesier, more comforting cousin! It has all those familiar flavors but in a hearty, scoopable casserole form.

So there you have it. Your weeknight dinner hero. No more stressing over complicated beef dishes or long-cooked Irish recipes.

This one-pan wonder delivers all the yummy dinners vibes with none of the hassle. It’s the easy fast dinner recipe you’ll make again and again. If you’re a fan of one-pan meals, you’ll love this Cheesy Ground Beef & Potato Skillet too.

Go try this and win back your weeknight! Let me know how it goes by leaving a comment and rating below!