I still haven't invested in a rotary cheese grater

RECIPE:
1 lb pasta (cavatappi)
1 Ib mozzarella
1 lb colby jack
/2 Ib sharp cheddar
1 tsp chicken bouillon
1 tsp garlic powder
1 tsp smoked paprika
3 tbsp unsalted butter
3tbsp flour
16 oz evaporated milk
2 cups heavy cream
<1 tbsp Dijon mustard