Preheat oven to 375 F and then in a large saucepan, melt the butter over medium-high heat.
Once the butter is melted whisk in flour. Cook until the mixture is bubbly and golden in color, about 2-3 minutes.
Whisk the mixture while adding milk and beer.
Then add cheese and stir until melted. To thicken cheese sauce, let the mixture come to a low boil , stirring frequently. Simmer for about 5 minutes.
Add pepper & paprika, then pour mixture over bowties and into a greased casserole dish, add bacon and stir.
Top with bread crumbs. Bake for 30 mins. Remove from oven, sprinkle with parsley and remaining bacon bits. Enjoy!