
This million dollar mac and cheese casserole is a true comfort food masterpiece loaded with three types of cheese and a golden buttery panko topping. I make this every time the family asks for something extra cozy and filling or whenever we have friends over for holidays. It is always the first dish to disappear from the table and it makes every meal feel special.
I still remember the first time I baked this for Thanksgiving and everyone raved about how decadent it tasted but how homey and familiar it felt with every bite.
Ingredients
- Cavatappi noodles: bring a playful spiral shape and hold the creamy sauce beautifully look for bronze cut pasta for the best texture
- All purpose flour: thickens the sauce for that classic mac and cheese body select fresh flour for best results
- Whole milk: adds richness while keeping the sauce smooth use high quality full fat milk for the most velvety result
- Evaporated milk: boosts creaminess and flavor heavy cream is a good substitute if preferred
- Dijon mustard: deepens the flavor base and enhances the cheese choose a good quality Dijon for mellow tang
- Cheddar cheese: provides classic sharpness buy a block and shred it yourself for maximum meltability
- Monterey Jack cheese: helps make the sauce extra creamy try to find a fresh moist block for easy shredding
- Gruyere cheese: adds a nutty melty richness go for a piece from the cheese counter if available
- Sour cream: helps with the casserole’s creamy interior ricotta works if you prefer it milder
- Breadcrumbs preferably panko: create that irresistible crispy topping choose Japanese panko for ultimate crunch
- Butter: binds the topping and enriches the sauce look for real unsalted butter for pure flavor
- Onion powder garlic powder dried parsley: infuse gentle undertones and aroma select dried spices that are still fragrant
- Salt and pepper: complete the seasoning freshly cracked pepper gives a little spicy kick
Step-by-Step Instructions
- Boil the Pasta:
- Cook the cavatappi noodles in salted water just shy of the package instructions so they stay slightly firm. Drain the pasta and rinse briefly with cool water to stop the cooking and prevent sticking
- Make a Roux:
- Melt butter over medium heat in a large saucepan until just bubbling careful not to brown it. Sprinkle in the flour and whisk for two minutes to cook out the raw flavor until it smells toasty but not burned
- Build the Cheese Sauce:
- Slowly pour in the whole milk and evaporated milk whisking constantly to prevent lumps. Add Dijon mustard onion powder garlic powder dried parsley salt and pepper. Simmer gently and keep whisking until everything thickens to coat the back of a spoon
- Melt in the Cheeses:
- Lower the heat and add freshly shredded cheddar and Monterey Jack cheese a handful at a time so it melts evenly. Whisk until everything is silky and smooth without graininess
- Combine and Assemble:
- Fold the cooked noodles into the cheese sauce making sure every piece is coated. Pour half the mixture into a buttered casserole dish sprinkle with half the Gruyere cheese and dollop sour cream across the layer. Add the remaining pasta and finish with the rest of the Gruyere and any leftover cheese
- Prepare the Topping:
- Mix panko breadcrumbs with melted butter in a small bowl until evenly moistened for maximum crunch. Scatter the buttered panko in an even layer over the casserole
- Bake and Serve:
- Bake uncovered in a preheated oven until bubbling at the edges and the top is a deep golden brown. Let the casserole rest for five minutes before scooping to allow the sauce to set slightly

I always look forward to mixing in Gruyere since its nutty flavor lends a touch of luxury. The whole family now expects this at any special meal and I have fond memories of cousins and siblings fighting over the corner pieces with the crispiest crumb topping.
Storage Tips
Let the casserole cool to room temperature before covering tightly and refrigerating. It keeps well for up to three days and reheats beautifully either in the oven covered with foil or in the microwave for single portions. For freezing bake the casserole as directed then cool slice and wrap portions for up to two months. Thaw overnight in the fridge and reheat until piping hot.
Ingredient Substitutions
Elbow macaroni or shells work well if you cannot find cavatappi. Any blendable melting cheese can step in for cheddar Monterey Jack or Gruyere—try mozzarella Colby Jack or fontina. For a tangy twist swap in Greek yogurt for sour cream. If you need a gluten free version pick gluten free pasta and use a one to one gluten free flour for the roux.
Serving Suggestions
Mac and cheese casserole makes an instant crowd pleaser for holidays potlucks or any gathering. Try a scoop topped with barbecue pulled pork roasted mushrooms or even diced smoked sausage for a heartier meal. Serve it alongside roasted broccoli green beans or a leafy salad to round out the richness.

Cultural and Historical Context
Baked macaroni and cheese casseroles have deep roots in American home cooking with variations passing down through generations. Early versions date back to colonial times when pasta and cheese were prized ingredients for festive occasions. Today it remains a beloved comfort dish treasured for its creamy texture and nostalgic charm.
Commonly Asked Questions
- → What are the best cheeses for mac and cheese casserole?
Combining sharp cheddar, Monterey Jack, and Gruyère creates a rich, silky cheese sauce. Feel free to swap in gouda or Colby Jack for slight variations in flavor.
- → How do I keep the mac and cheese sauce creamy?
Shred cheese fresh to avoid fillers that thicken the sauce, cook pasta just under al dente, and whisk the sauce until smooth before baking.
- → Can I make this casserole ahead?
Yes, assemble and refrigerate (without topping) up to 24 hours ahead. Let sit at room temperature before adding the topping and baking.
- → What toppings add extra crunch or flavor?
Panko breadcrumbs tossed in melted butter create a golden crispy top. You can add bacon, truffle oil, or even roasted garlic for more flavor.
- → Are there protein or seafood variations?
Stir in pulled pork, lobster, crab meat, or chorizo to transform it into a hearty one-dish meal for holidays or potlucks.
- → What should I serve with mac and cheese casserole?
Pair with roast meats, ham, broccoli salad, green beans, or classic holiday sides for a comforting menu.