Chicken Alfredo

1 c. cooked pasta
1 chicken breast, grilled
2 Tbsp. butter
2 Tbsp. flour
1 c. milk
1/4 tsp. garlic powder
2 Tbsp. parmesan cheese
salt and pepper to taste

Melt butter, stir in flour to make a paste. Add milk, stir continually over medium heat until thick and bubbly. Add remaining ingredients.