Cook macaroni according to package directions. Preheat oven to 350°.
Meanwhile, in a large bowl, whisk the eggs, milk, butter, mustard, seasoned salt and pepper until combined. Stir in the process cheese and 1-1/2 cups of each cheddar cheese.
Drain macaroni; stir into cheese mixture. Pour into a greased 3-qt. baking dish. Top with remaining cheeses. Bake, uncovered, until cheese is melted and edges are bubbly, 25-30 minutes.
Southern Mac and Cheese Tips
How do you store Southern mac and cheese?
Like other mac and cheese recipes, you can store this Southern version for up to 3 to 5 days in an airtight container in the fridge. Once you're ready to enjoy, follow one of these methods for reheating pasta.
What are some variations to this Southern mac and cheese recipe?
Swap one of the sharp cheddars for Colby-Jack or mild cheddar cheese. Just make sure you don't replace the Velveeta—that's key to the creaminess of this mac and cheese recipe. You could also try adding some toppings like toasted bread crumbs to add a little bite!