Green Bean And Yogurt Casserole
["1 (16 oz.) can French-style green beans (undrained)", "vegetable cooking spray", "1 Tbsp. onion, chopped", "1 Tbsp. reduced calorie margarine, melted", "1 Tbsp. all-purpose flour", "1/4 tsp. pepper", "1/2 tsp. salt", "1/2 c. plain unsweetened low-fat yogurt"]
["Place beans in a small saucepan and bring to a boil.", "Remove from heat and drain.", "Put beans in a one-quart casserole dish coated with cooking spray.", "Set aside and keep warm."]
["green beans", "vegetable cooking spray", "onion", "margarine", "flour", "pepper", "salt", "yogurt"]