In a large pot over medium heat, combine the pasta and milk. Bring the milk to a simmer and cook until the pasta is tender, 8–10 minutes.
2. Step
Once the pasta is cooked, remove the pan from the heat and add the butter, American cheese, salt, and pepper. Stir until fully combined. Fold in the bacon.
3. Step
Divide between serving bowls and top with the bread crumbs.