Macaroni and Cheese Grilled Cheese Recipe: Melty Three-Cheese Sandwich

I’ve combined two comfort food classics into one indulgent sandwich that’s pure cheesy perfection. This creation layers creamy macaroni and cheese between buttery, golden bread for the ultimate melt.

The secret is using a blend of cheeses in both the pasta and the sandwich, creating a rich, velvety texture that stretches with every bite. It’s a meal that satisfies like no other.

Ingredients for Macaroni and Cheese Grilled Cheese

Pantry staples plus a few cheeses. That’s all you need for this next-level sandwich.

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The cheeses are everything here. Sharp cheddar at the grocery store deli counter—ask them to shred it fresh (pre-shredded has anti-caking agents that make the sauce grainy). Gruyere adds that nutty depth—look for it near the specialty cheeses at Whole Foods. Parmesan from a wedge always melts better than the pre-grated stuff. For the bread, sourdough from a local bakery takes this over the top.

No Gruyere? Fontina or Monterey Jack work great. Out of Dijon? Yellow mustard at half the amount. Want extra richness? Swap whole milk for heavy cream. The pasta shape can be anything short—cavatappi or shells hold the sauce well. For the Worcestershire, check the label—Annie’s or Edward & Sons make vegetarian versions without anchovies.

Leftovers keep 3-4 days in the fridge (reheat in a skillet to keep the bread crisp). The cheese sauce thickens as it cools—stir in a splash of milk before using. Freeze uncooked patties for up to 1 month.

Step-by-Step Instructions for Macaroni and Cheese Grilled Cheese

Here’s the method. Straightforward, tested, works every time.

Step 1: Cook the Elbow Macaroni Al Dente

Bring a large pot of water to a rolling boil and salt it with the 1 tsp Salt. Add the 8 oz Elbow Macaroni and cook for 7-8 minutes until just tender but still firm to the bite.

Drain immediately and rinse briefly under cold water to stop the cooking process. This prevents the pasta from turning mushy when we bake it later. Shake off any excess water before proceeding.

Step 2: Make the Three-Cheese Sauce

In a saucepan over medium heat, melt 4 tbsp Unsalted Butter. Whisk in the 2 tbsp All-Purpose Flour and cook for 1-2 minutes until bubbly and golden—this creates a roux that will thicken the sauce.

Slowly whisk in the 2 cups Whole Milk until smooth. Add the 1 tbsp Dijon Mustard, 0.5 tsp Dry Mustard, 0.5 tsp Worcestershire Sauce, and 0.5 tsp Black Pepper. Stir in the 2 cups Sharp Cheddar Cheese, 1 cup Gruyere Cheese, and 0.5 cup Parmesan Cheese until fully melted and creamy.

Step 3: Combine Pasta and Sauce

Pour the cheese sauce over the cooked elbow macaroni in a large bowl. Stir gently until every piece is coated evenly. The sauce should be thick enough to cling to the pasta without being gluey.

If it seems too thick, add a splash of warm milk to loosen it. Taste and adjust seasoning if needed, though the cheeses should provide plenty of flavor.

Step 4: Assemble and Grill the Sandwiches

Spread the remaining 2 tbsp Unsalted Butter on one side of each of the 8 slices Sourdough Bread. Divide the macaroni and cheese mixture evenly among four slices, buttered side down. Top with the remaining slices, buttered side up.

Heat a skillet or griddle over medium-low heat. Cook the sandwiches for 3-4 minutes per side until the bread is golden brown and the cheese inside is fully melted. Press down gently with a spatula to ensure even contact with the pan.

Serve immediately while hot and gooey. The outside should be crisp, and the inside should pull apart in long, cheesy strands.

Troubleshooting Perfect Results

Sauce Too Thin

If your cheese sauce isn’t thickening, you likely need more roux. Whisk in 1 tbsp flour with 1 tbsp butter and cook for 2 minutes. The sauce should coat the back of a spoon. I learned this trick at culinary school—it never fails. 💡

Pasta Mushy

Overcooked pasta ruins the texture. Cook your elbow macaroni for only 7-8 minutes until al dente. Rinse under cold water immediately to stop cooking. This keeps the bite even after grilling.

Cheese Not Melting

Pre-shredded cheese has anti-caking agents that prevent smooth melting. Always shred from a block—sharp cheddar and Gruyere work best. If your cheese is grainy, stir in 1 tbsp milk to help it smooth out.

Sandwich Burning

Medium-low heat is key for even cooking. If your sourdough bread browns too fast, lower the heat and cover the pan for 1-2 minutes. This melts the cheese without burning the outside.

Filling Spilling Out

Don’t overfill your sandwiches. Use about ½ cup macaroni and cheese per sandwich. Press down gently with your spatula as it cooks to keep everything contained.

Cheese Sauce Lumpy

Lumps in your sauce usually mean the milk was too hot when added. Always whisk in milk slowly over medium heat. If lumps form, use an immersion blender to smooth it out. 🔥