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Mac and cheese with corned beef, sautéed brussles sprouts and garnished with sliced green onions, in a white bowl. There's a nutcracker in the foreground who looks like a chef.

Corned Beef Mac & Cheese

Stacey Mincoff
A great way to use leftover corned beef is to make this mac & cheese. You won’t feel like you’re eating leftovers and it’s quick and tasty.
Total Time 1 hour 15 minutes
Course Dinner
Cuisine American, Irish
Servings 9 Servings
Calories 334 kcal

Ingredients
 
 

  • 5 Ounces Corned Beef (cooked and cut into cubes)
  • 7.5 Ounces Brussels Sprouts (weight is after trimming)
  • 2 Ounces Shallot (1 medium - minced)
  • 5.75 Ounces Irish White Cheddar Cheese (2 cups - shredded)
  • 1.75 OUnces Parmigiano Reggiano Cheese (1 cup - grated)
  • 1/8 Teaspoon Dry Ground Mustard
  • 1/8 Teaspoon Cayenne Pepper
  • 3/4 Cup Heavy Cream
  • 1/4 Cup Whole Milk
  • 3 Tablespoons Butter
  • 1/4 Teaspoon White Pepper
  • 1/4 Teaspoon Salt
  • 8 Ounces Dried Elbow Pasta (gluten free or regular)
  • Green onions for garnish optional

Instructions
 

  • Slice your leftover corned beef and cut into cubes.
  • Shred your cheese if you didn't buy it pre-shredded.
  • Wash and trim brussels sprouts, then slice or shred them. A mandolin set about 1/8” works best, but you can use a food processor with the slicing blade or cut them with a knife one a time. Think of how you cut cabbage for slaw, you can also buy it pre-shredded.
  • Heat a skillet on medium high and add a tablespoon of butter or oil of choice. Sauté the brussels sprouts until they start to turn brown, then add the minced shallots and continue to toss and cook until shallots are just starting to turn translucent (about 1-2 minutes). Remove from heat and set aside.
  • Meanwhile, Start water boiling in a large sauce pan and cook the pasta about 1-2 minutes less than package directions. You want the pasta to be al dente. Gluten free pasta can turn to mush very quickly. If using regular pasta, I still suggest at least one minute less than package directions.
  • In another smaller sauce pan, add milk, cream, butter, dry mustard, cayenne pepper and white pepper. Heat (not boil) until butter is melted and seasonings are incorporated. Add the cheese and stir until it’s all smooth and creamy.
  • Drain pasta, place back into large sauce pan, pour cheese mixture on top and stir until completely combined and smooth. Add cubed corned beef, brussels sprouts and shallots. Stir until combined and serve. See notes below.

Notes

*You can also leave the brussels sprouts in halves and roast them in the oven if you prefer. It really doesn’t matter as long as they are cooked to the desired doneness before they are incorporated into the mac and cheese. 
*Heat the corned beef in the microwave for 30 seconds or add the corned beef to the pan that you cooked the brussels sprouts in, and heat slightly.
*You can add bread crumbs (gluten free or not) to the top and bake in a 8” x 8” caserole dish, but if so, you may want to add just a bit more milk or cream, or cover it the dish while it bakes to keep it from drying out.

Nutrition

Calories: 334kcalCarbohydrates: 23gProtein: 13gFat: 22gSaturated Fat: 13gTrans Fat: 1gCholesterol: 69mgSodium: 521mgPotassium: 208mgFiber: 2gSugar: 2gVitamin A: 834IUVitamin C: 25mgCalcium: 231mgIron: 1mg
Keyword Dinner, Leftovers, Mac & Cheese, Pasta, St. Patrick's Day
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