Mac and Cheese Meatloaf Casserole

A cozy, decadent mashup of savory, tender beef meatloaf topped with ultra-creamy, baked macaroni and cheese.

Why This Recipe Works:

• Par-baking the meatloaf base prevents grease from seeping into the macaroni layer.
• Using a classic roux-based cheese sauce ensures the pasta stays velvety and doesn't split under high heat.
• A touch of sharp cheddar and smoked paprika bridges the savory beef flavor with the rich pasta.

I still remember the Tuesday night my kitchen smelled like scorched onions and defeat because I tried to bake a meatloaf and a side of macaroni in the same tiny oven. My hands were literally shaking as I tried to balance two hot pans on one rack.

It was a disaster.

The meatloaf released a lake of grease that turned the bottom of my loaf pan into a soggy, gray mess, while the macaroni dried out into a sad, leathery sheet. When you bake meatloaf under a heavy topping without managing the moisture, the steam gets trapped, destroying the delicate protein matrix of the beef and leaving you with a mushy texture.

The fix is actually incredibly simple. We just need to par-bake the beef to render out the excess fat before adding the pasta, a technique I perfected while developing my Cheesy Stuffed Meatloaf Bite recipe.

Trust me on this one.

For the pasta layer, I relied on my tried-and-true method for a velvety Homemade Cheese Sauce to keep things incredibly smooth. This prevents the cheese from breaking into an oily pool during its second trip through the oven.

Mac and Cheese Meatloaf Casserole

• Publisher Storied Skillet
• Cuisine American
• Category Dinner, Casserole
• Prep Time 20 mins
• Cook Time 50 mins
• Servings 6
• Calories 620 calories
• Rating 4.8 3560
• Tags meatloaf, mac and cheese, casserole, comfort food, dinner

Ingredients

• 1.5 lbs ground beef (80/20 blend)
• 1.5 tsp Diamond Crystal kosher salt
• 1/2 cup panko breadcrumbs
• 1/3 cup whole milk
• 1 small yellow onion, finely grated
• 1/2 tsp garlic powder
• 1/2 tsp black pepper
• 8 oz elbow macaroni
• 3 tbsp unsalted butter
• 3 tbsp all-purpose flour
• 2 cups whole milk (for the sauce)
• 2 cups sharp cheddar cheese, freshly grated
• 1/4 tsp smoked paprika

Directions

1. Preheat your oven to 375°F (190°C) and lightly grease a 9x13-inch baking dish.
2. In a large bowl, combine the ground beef, Diamond Crystal kosher salt, panko breadcrumbs, 1/3 cup milk, grated onion, garlic powder, and black pepper. Gently mix with your hands until just combined, being careful not to overwork the meat.
3. Press the meat mixture evenly into the bottom of the prepared baking dish. Bake for 20 minutes to par-cook the beef and render out the excess fat.
4. While the meatloaf bakes, boil the elbow macaroni in salted water until it is just al dente, then drain and set aside.
5. In a medium saucepan, melt the butter over medium heat. Whisk in the flour and cook for 1 to 2 minutes until pale and smelling slightly nutty.
6. Slowly pour in the 2 cups of milk while whisking constantly to prevent lumps. Simmer until the sauce thickens enough to coat the back of a spoon.
7. Remove the saucepan from the heat and stir in the grated cheddar cheese and smoked paprika until completely melted and smooth. Stir the drained macaroni into the cheese sauce.
8. Carefully drain any excess grease from the baking dish containing the par-baked meatloaf.
9. Pour the mac and cheese evenly over the meatloaf layer. Return the casserole to the oven and bake for another 25 to 30 minutes until the edges are bubbling and the top is golden brown.

Notes

• I highly recommend using Diamond Crystal kosher salt; if you are using Morton's kosher salt, reduce the volume by half (use 3/4 teaspoon instead of 1.5 teaspoons) to avoid over-salting.
• Grate your own cheese from a block because pre-shredded store brands failed every single test since their cellulose coating prevents a smooth melt and ruins the protein matrix of your sauce.
• Keep a close eye on your roux; butter can burn in a split second, so whisk constantly over medium-low heat until it smells nutty but remains pale.
• After a day in the fridge, the pasta will absorb more moisture from the sauce, making it slightly firmer, but a splash of milk during reheating restores that velvety texture beautifully.

Serving Suggestions

Pair this heavy, ultra-cozy casserole with something bright and acidic to cut through the rich cheese and savory beef. It helps balance the plate and keeps the meal from feeling too overwhelming.

• A crisp, peppery arugula salad tossed in lemon vinaigrette.
• Roasted green beans with a squeeze of fresh lemon juice.
• Tangy pickled red onions to scatter over the top.
• A side of roasted broccoli to add some charred, earthy flavor.
• If you are a purist who prefers your pasta on the side, you can always serve this meatloaf alongside our legendary Fried Chicken & Creamy Mac and Cheese instead.

Storage and Reheating

Store any leftovers in an airtight glass container in the fridge for up to four days. I prefer glass because plastic tends to absorb the orange grease from the cheddar, which is nearly impossible to scrub out.

Do not freeze this.

The freezing process breaks down the starch gelatinization in the cheese sauce. When thawed, it will split into a watery, grainy mess that even a lot of extra cheese cannot save.

To reheat, place a slice in a baking dish, splash a tablespoon of whole milk over the macaroni, and cover tightly with foil. Bake at 325°F (160°C) for about 15 minutes until the center is hot and the cheese is creamy again.

Ingredient Substitutes

If you need to swap things out, here are the best tested alternatives that won't ruin the dish.

1. Ground Turkey: You can use ground turkey instead of beef, but add a tablespoon of Worcestershire sauce to make up for the lost umami.
2. Gluten-Free Pasta: Swap the elbow macaroni for a sturdy gluten-free option like brown rice pasta, but cook it two minutes under package directions so it doesn't turn to mush.
3. Different Cheeses: Gruyère or Monterey Jack can replace half of the cheddar for a different flavor profile, though sharp cheddar remains the classic choice.

This dish is pure, unadulterated comfort, the kind of meal that makes you want to curl up on the couch and forget about the dishes for an hour. Let me know how yours turns out, and don't forget to scrape those crispy cheese edges off the side of the pan—they are absolutely the best part.