Green Bean Supreme

Ingredients

• 1/2 c. diced onion
• 1 tsp. parsley
• 2 tsp. butter
• 2 tsp. flour
• 1 tsp. salt
• 1/2 tsp. pepper
• 1/2 tsp. grated lemon peel
• 1 c. sour cream
• 5 c. cooked green beans
• 1/2 c. grated American cheese
• 2 Tbsp. melted butter
• 1/2 c. bread crumbs