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–+ servings
A mac and cheese grilled cheese cut in half on a plate
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Grilled Mac and Cheese Sandwich

This mac and cheese grilled cheese is crispy, buttery, and loaded with creamy, gooey cheese. The ultimate comfort food sandwich made in minutes using simple ingredients.
Prep Time5 minutes
Cook Time5 minutes
Resting Time2 minutes
Total Time12 minutes
Servings: 1
Calories: 339kcal
Author: Karin and Ken

Ingredients

  • 2 slices thick-cut white bread also sourdough, Texas toast or your favorite thick sturdy bread
  • 2 tablespoons butter mayo or a blend of butter and mayo works too
  • 1 cup prepared macaroni and cheese warm, (boxed, leftover or store-bought)
  • 2 slices cheddar cheese American, mozzarella, colby jack or Monterey jack cheeses

Instructions

  • Place the bread slices on a cutting board and spread one side of each slice evenly with butter.
  • Heat a small nonstick skillet over medium heat. Place one slice of bread in the skillet, butter-side down. Top with one slice of cheddar cheese, the prepared macaroni and cheese, and the remaining slice of cheddar cheese.
  • Place the second slice of bread on top, butter-side up.
  • Cook for about 2–3 minutes, or until the bottom is golden brown. Carefully flip the sandwich with a spatula and gently press down to help the cheese melt and promote even browning.
  • Cook for another 2–3 minutes, or until the second side is golden brown and the cheese is fully melted.
  • Remove from the skillet, slice if desired, and serve immediately.

Notes

  • Don’t overfill: Keeps sandwich manageable
  • Flip carefully: Prevents spilling filling
  • Use preheated pan over medium-low heat: Allows the bread to crisp and not burn while giving cheese time to melt fully
  • Warm the mac and cheese first: Helps everything heat evenly inside the sandwich
  • Butter edge to edge: Ensures a perfectly golden crust with no dry spots
  • Use thick, sturdy bread: Prevents the sandwich from collapsing under the filling
  • Add cheese on both sides: Acts like glue to hold the mac and cheese in place
  • Press gently while cooking: Helps everything meld together without squeezing out filling
  • Don’t overload the sandwich: Keeps it easy to flip and evenly cooked
  • Let rest 1–2 minutes after cooking: Helps the filling set for cleaner slicing
 

Nutrition

Calories: 339kcal | Carbohydrates: 1g | Protein: 8g | Fat: 34g | Saturated Fat: 21g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 8g | Trans Fat: 1g | Cholesterol: 94mg | Sodium: 402mg | Potassium: 33mg | Sugar: 0.1g | Vitamin A: 1040IU | Calcium: 247mg | Iron: 0.1mg