In a large pot, melt butter on low heat. Add garlic and saute about 30-40 seconds. Add flour, salt, and pepper. Using a wisk, stir over medium heat until there are no lumps and the mixture begins to bubble. Slowly add milk, stirring entire time and bring to a boil. Once boiling, allow to boil for one minute then add mustard and cheese. Stir until cheese is melted. Taste and adjust seasoning if necessary. Add ham and pasta. Stir until evenly coated. Pour into freezer containers. Cool and freeze.

Reheating instructions: Thaw. Preheat oven to 350. Bake uncovered for 30-40 minutes or until heated through and bubbly.