Hearty Corned Beef Hash Casserole Supreme (Breakfast to Dinner!)

Introduction

Did you know that Americans throw away nearly 40% of their leftovers, including holiday favorites like corned beef? What a waste of flavor and money! Instead of letting your St. Patrick’s Day leftovers languish in the refrigerator, why not transform them into a delicious new creation? Hearty Corned Beef Hash Casserole Supreme (Breakfast to Dinner!) is the perfect solution for repurposing that savory corned beef into a mouthwatering meal that’s even better than the original. This corned beef hash casserole combines the rich flavors of tender corned beef with crispy potatoes, savory vegetables, and a creamy cheese sauce that will have your family requesting leftovers more often!

Ingredients List

For this irresistible Hearty Corned Beef Hash Casserole Supreme (Breakfast to Dinner!), you’ll need:

• 3 cups leftover corned beef, diced into ½-inch cubes
• 4 cups cooked potatoes, cubed (Yukon Gold works beautifully, but russets are fine too)
• 1 large yellow onion, diced
• 1 red bell pepper, diced
• 2 cloves garlic, minced
• 2 tablespoons butter
• 2 tablespoons olive oil
• 1½ cups sharp cheddar cheese, shredded (substitute Swiss or Gruyère for a tangier flavor)
• ½ cup sour cream (Greek yogurt works as a lighter alternative)
• ¼ cup whole milk
• 2 large eggs, lightly beaten
• 1 tablespoon Dijon mustard
• 1 teaspoon Worcestershire sauce
• 1 teaspoon fresh thyme leaves (or ½ teaspoon dried)
• Salt and freshly ground black pepper to taste
• 2 green onions, thinly sliced for garnish
• Optional: 1 cup frozen peas or corn for added color and nutrition

Timing

Preparation Time: 20 minutes (15% faster if you prep your vegetables the night before)
Cooking Time: 35 minutes
Total Time: 55 minutes (significantly quicker than traditional casseroles that often require 90+ minutes)

Step-by-Step Instructions

Step 1: Prepare Your Base

Preheat your oven to 375°F (190°C) and grease a 9×13-inch baking dish. In a large skillet, heat the butter and olive oil over medium heat. Add the diced onions and cook until they begin to soften, about 3-4 minutes. The aroma will signal when they’re ready for the next ingredients!

Step 2: Build The Flavors

Add the bell peppers and garlic to the skillet, cooking for another 2-3 minutes until fragrant. Season with a pinch of salt and pepper to wake up those flavors. If the mixture seems dry, add a splash more olive oil – your vegetables should glisten but not swim in oil.

Step 3: Incorporate The Stars

Gently fold in your diced corned beef and potatoes. The key here is to maintain their texture, so use a spatula rather than aggressive stirring. Cook for about 5 minutes, allowing the flavors to meld together while creating some delicious crispy edges on the potatoes and beef.

Step 4: Create The Creamy Binder

In a separate bowl, whisk together the sour cream, milk, beaten eggs, Dijon mustard, Worcestershire sauce, and thyme. This mixture is your flavor carrier – make sure it’s well combined for even distribution throughout the casserole. A silky consistency is what you’re aiming for!

Step 5: Assemble Your Masterpiece

Transfer half of the corned beef mixture to your prepared baking dish. Sprinkle with half the cheese, then add the remaining corned beef mixture. Pour the creamy egg mixture evenly over the top, allowing it to seep through the layers. Finish with the remaining cheese for that irresistible golden crust.

Step 6: Bake To Perfection

Bake uncovered for 25-30 minutes, or until the casserole is bubbly around the edges and golden brown on top. The internal temperature should reach 165°F for food safety. Allow to rest for 10 minutes before serving – this resting period lets the flavors settle and makes serving much easier.

Nutritional Information

Per serving (based on 8 servings):

• Calories: 385
• Protein: 22g
• Carbohydrates: 26g
• Dietary Fiber: 3g
• Sugars: 3g
• Fat: 22g
• Saturated Fat: 10g
• Cholesterol: 115mg
• Sodium: 650mg (may vary depending on how your original corned beef was prepared)
• Potassium: 635mg

Healthier Alternatives for the Recipe

Transform this corned beef hash casserole into a lighter version without sacrificing flavor:

1. Reduce cheese to 1 cup and use a reduced-fat variety
2. Replace sour cream with 2% Greek yogurt for extra protein and less fat
3. Increase the vegetable ratio by adding 1 cup of sautéed mushrooms and spinach
4. Use sweet potatoes instead of white potatoes for additional nutrients and fiber
5. Replace half the corned beef with cooked lentils for a plant-based protein boost
6. Use egg whites instead of whole eggs to lower cholesterol and fat content

These modifications can reduce the calorie count by approximately 25% while maintaining the satisfying comfort food experience.

Serving Suggestions

This versatile Hearty Corned Beef Hash Casserole Supreme (Breakfast to Dinner!) works beautifully across mealtimes:

• For breakfast: Top with a fried or poached egg for an impressive brunch centerpiece
• For lunch: Serve alongside a crisp green salad dressed with a light vinaigrette
• For dinner: Pair with steamed green vegetables like asparagus or Brussels sprouts
• Add a dollop of horseradish cream for an extra flavor kick
• Include a side of pickled cabbage or sauerkraut to honor the dish’s Irish roots
• For a modern twist, serve in individual ramekins for an elegant presentation

Common Mistakes to Avoid

1. Overcooking the potatoes before adding to the casserole – they should be just tender
2. Using wet corned beef – pat it dry first to prevent a soggy casserole
3. Skipping the resting time – this crucial step prevents a runny consistency
4. Adding too much salt – corned beef is already highly seasoned
5. Covering the casserole while baking – this prevents the desirable golden crust
6. Rushing the sautéing process – properly caramelized vegetables provide essential flavor
7. Using pre-shredded cheese – it contains anti-caking agents that prevent proper melting

Storing Tips for the Recipe

This corned beef hash casserole gets even better with time! Store properly to enjoy it for days:

• Refrigerate leftovers in an airtight container for up to 4 days
• Freeze individual portions for up to 3 months in freezer-safe containers
• Thaw overnight in the refrigerator before reheating
• Reheat in a 325°F oven for 15-20 minutes until heated through
• Add a splash of milk or broth when reheating to restore moisture
• For meal prep, assemble but don’t bake – refrigerate for up to 24 hours before cooking

Conclusion

This Hearty Corned Beef Hash Casserole Supreme (Breakfast to Dinner!) proves that leftovers can be transformed into something truly extraordinary. By combining your leftover corned beef with simple ingredients and a straightforward technique, you’ve created a versatile dish that works from dawn to dusk. The perfect balance of protein, carbohydrates, and creamy goodness makes this recipe a keeper for any time you find yourself with extra corned beef. Why not make this recipe your new post-holiday tradition? Your family will be hoping for leftover corned beef just so you’ll make this casserole!

FAQs

Can I use canned corned beef for this recipe?
Yes! While leftover home-cooked corned beef provides the best flavor, canned corned beef works in a pinch. Reduce the added salt in the recipe since canned versions tend to be saltier.

How can I make this recipe ahead of time?
You can assemble the entire casserole up to 24 hours ahead, cover and refrigerate. Add an extra 10-15 minutes to the baking time when cooking from cold.

Can I add other vegetables to this casserole?
Absolutely! Carrots, peas, corn, or even broccoli make excellent additions. Just make sure to pre-cook firmer vegetables before adding them to the mix.

What’s the best potato to use in this recipe?
Yukon Gold potatoes hold their shape well while remaining creamy. However, russets or red potatoes also work – each providing a slightly different texture to the final dish.

Is this recipe gluten-free?
Yes, as written, this recipe contains no gluten ingredients. However, always check your specific brands of Worcestershire sauce and Dijon mustard to confirm they’re gluten-free.

Can I make this spicier?
Definitely! Add diced jalapeños to the sautéed vegetables or mix in a teaspoon of your favorite hot sauce to the cream mixture for a kicked-up version.