Chicken Ranch Pasta *

8 oz penne pasta
1 Tbsp butter
1 Tbsp flour
2 Tbsp dry ranch seasoning mix
2 cups milk
1 cup shredded cheddar cheese
1/3 cup cooked chopped bacon
2 cups cooked chopped chicken

Cook pasta according to package directions.  Drain and set aside.  In a separate pot, melt butter.  Add flour and stir.  Cook flour for 1 minute.  Slowly whisk in milk.  Continue cooking until sauce thickens.  Stir in ranch dressing mix and cheese.  Stir until cheese melts.  Combine chicken, pasta, and bacon in large pot.  Pour in sauce and stir to coat.