Best Baked Mac and Cheese for a Crowd Recipe

On 2/8/2026, 10:33:09 PM

Make the best baked mac and cheese for a crowd. This creamy, cheesy large batch recipe is perfect for holidays, potlucks, and feeding many guests.

Table of Contents

Select hollow or ridged pasta shapes like elbows or shells to hold sauce. Grate cheese blocks yourself to avoid grainy texture. Create a smooth roux with butter and flour before adding milk. Season the white sauce and melt cheese gradually off the heat. Top with buttered breadcrumbs and bake until golden. Adjust pasta and sauce quantities to feed large crowds efficiently.

Question

Answer

What pasta shape works best?

Elbows, cavatappi, and shells capture sauce effectively.

Why use freshly grated cheese?

Pre-shredded cheese contains additives that make sauce grainy.

How do you prevent lumps in the sauce?

Whisk vigorously while pouring milk into the roux.

What is the baking temperature?

Bake the dish at 350 degrees Fahrenheit.

Can you make mac and cheese ahead of time?

Assemble the dish up to 24 hours in advance and refrigerate.

Select the best pasta shapes and cheese

Elbow macaroni is the traditional choice for baked mac and cheese. Its short shape and hollow center capture sauce effectively. Cavatappi and shells are excellent alternatives. Curves and ridges help thick sauce stick to the noodles. Always cook pasta until al dente. Noodles continue softening in the oven. Overcooked pasta results in a mushy texture. Drain well after boiling to prevent thinning the cheese sauce.

Ideal Pasta Shapes

Shape

Benefit

Elbows

Classic choice, holds sauce inside

Cavatappi

Spiral ridges grab sauce

Shells

Deep pockets trap cheese

Freshly grated cheese is critical for a smooth sauce. Pre-shredded cheese contains anti-caking agents. These additives cause sauce to become grainy. Buy cheese blocks and grate them yourself. Sharp cheddar provides the strongest flavor profile. Processed American cheese blocks ensure creaminess. Monterey Jack melts easily without separating. Combining varieties creates the best taste. Avoid using mild cheeses alone for large groups. Stronger flavors stand out better.

  • Sharp Cheddar: Essential for classic taste
  • American Block: Ensures creamy texture
  • Monterey Jack: Provides excellent melt
  • Parmesan: Adds savory depth

Create a smooth roux for the sauce

Melt butter in a large pot over medium heat. Whisk in all-purpose flour immediately. Stir constantly to prevent burning. Cook the mixture until it bubbles and smells nutty. This takes about two minutes. A properly cooked roux ensures a thick sauce without a raw flour taste. Smooth texture is vital for homemade mac and cheese sauce recipes.

Slowly pour in milk or heavy cream. Whisk vigorously while pouring. This action breaks up any lumps. Use a large whisk for big batches. Keep stirring until the sauce bubbles and thickens. It should coat the spoon. Remove the pot from heat before adding cheese. High heat makes cheese separate and turn greasy. Check out this baked mac and cheese recipe with roux for more details.

Roux Ingredients Ratio

Ingredient

Function

Butter

Provides fat and flavor

Flour

Thickens the liquid

Milk

Creates creamy base

Season the white sauce now. Add salt, black pepper, and mustard powder. Paprika adds color. Cayenne pepper brings a subtle kick. Stir in spices until fully dissolved. A well-seasoned roux enhances the final cheese flavor. Do not rush the melting process. Dumping cheese in too fast causes clumping. Add handfuls gradually. Stir until melted before adding more.

Bake the dish to golden perfection

Preheat the oven to 350 degrees Fahrenheit. Butter large baking pans or roasters thoroughly. Pour the prepared pasta and cheese sauce into the dishes. Spread the mixture evenly to ensure uniform baking.

Create a Crunchy Topping

Mix panko breadcrumbs with melted butter. Sprinkle this mixture generously over the macaroni. Add extra shredded cheese on top for a gooey finish. Ritz crackers also make a delicious crust.

Cover the pans tightly with aluminum foil. Bake large batches for 1.5 to 2 hours. Smaller casseroles require 20 to 30 minutes. Rotate the pans halfway through the cooking time. This ensures the center gets hot without burning the edges.

Baking Times and Temps

Batch Size

Temperature

Time

Large Crowd (20+)

350°F

1.5 - 2 hours

Standard Casserole

350°F - 400°F

20 - 30 mins

Remove the foil during the last 15 minutes. The top should turn golden brown and bubbly. Watch carefully to avoid scorching the crumbs. Let the dish rest for 10 minutes before serving. This sets the sauce for easier scooping.

Adjust portions to feed a large group

Calculate servings based on guest count. A standard batch feeds 20 to 25 people comfortably. Double the recipe to serve 50 to 60 guests. Estimate a half-cup serving per person. Account for big appetites at events. Always prepare extra to avoid running out.

Serving Chart

Crowd Size

Raw Pasta

Pan Type

20-25 Guests

2 lbs

13x9 Casserole

50+ Guests

4-5 lbs

20x12x4 Roaster

Use large equipment for volume. A standard catering pan holds 50 half-cup servings. Multiple 13x9 dishes offer easier handling in standard ovens. Ensure oven space accommodates all pans.

Large Batch Tips

  • Cook pasta in several pots to prevent sticking.
  • Grate cheese in a food processor to save time.
  • Make sauce in a large stockpot.
  • Taste sauce before mixing with pasta.

Assemble the dish early. Build the mac and cheese up to 24 hours in advance. Cover tightly with aluminum foil. Refrigerate until ready to bake. Add extra baking time for cold dishes. Remove foil for the last 15 minutes to brown the top.