Chicken Casserole

Ingredients

• 1/2 c. chopped onion
• 1/2 c. butter or margarine
• 1/4 c. plain flour
• 1 c. sliced mushrooms (6 oz.)
• 1 c. chicken broth (Swanson)
• 1 1/2 c. light cream or more butter
• 3 c. Swanson chunky white chicken
• 1 pkg. Uncle Ben's wild and regular rice
• 2 oz. jar chopped pimentos
• 1/2 c. slivered almonds (sprinkle on top)