Chicken-Asparagus Casserole
["5 Tbsp. all-purpose flour", "1 tsp. salt", "1/4 tsp. onion salt", "1/4 c. melted butter", "2 1/2 c. milk", "1 1/3 c. uncooked instant rice", "1 1/2 c. chicken broth", "1 (14 1/2 oz.) can cut asparagus spears, drained", "2 c. cubed chicken", "1/2 c. shredded Cheddar cheese"]
["Stir flour, 1/2 teaspoon salt and onion salt into butter in a heavy saucepan; cook over low heat until bubbly, stirring constantly.", "Gradually add milk; cook until smooth and thickened, stirring constantly.", "Set aside."]
["flour", "salt", "onion salt", "butter", "milk", "rice", "chicken broth", "chicken", "Cheddar cheese"]