Preheat oven to 400°F. Butter 4 (14-ounce) ovenproof dishes.
Cook macaroni in a large pot of salted water according to package directions. Drain and set aside.
In a small bowl, combine melted butter, breadcrumbs, and ¼ cup of the grated cheddar cheese. Set aside.
In a large saucepan over medium heat, bring milk to a boil.
Reduce heat to medium-low and add cream cheese cut into cubes. Stir until melted, about 2 minutes.
Gradually stir in the remaining cheddar cheese until completely melted, about 5 minutes.
Add cooked pasta to the cheese sauce along with salt and pepper. Toss to combine thoroughly.
Divide the mixture evenly among the prepared dishes.
Bake until bubbly, about 10 minutes.
Remove from oven and sprinkle with breadcrumb mixture.
Bake until golden brown, about 10 minutes more.