Mac and Cheese

This recipe was given to me by a good friend of mine. This is definitely a comfort food.

1 Pound of Rigatoni or Penne Pasta
1 pkg of Havarti Cheese (shred)
4 cups Milk
Salt
Pepper
Thick deli ham sliced into 1/2" squares
1/2 cup butter
1/2 cup and 2Tbsp of flour

Preheat oven 425
Bring water to boil. Add pasta. Cook for 4 minutes, drain and then set aside. On medium heat melt butter in sauce pan add flour and whisk until creamy (1-2 min). Alternate adding milk and whisking until creamy. Add 3/4 of the Havarti cheese whisk until creamy. Add ham. Combine sauce and pasta in a large bowl. Put in a greased 9*13 pan. Sprinkle the rest of cheese and bake in the oven for 25 minutes.