Chicken and Rice Casserole - green beans

Ingredients

• 2 (14 1/2-ounce) can green beans, drained and rinsed
• 3 cups diced cooked chicken
• 1 medium onion, diced and sauteed
• 1 (8-ounce) can water chestnuts, drained and chopped
• 1 (4-ounce) can pimentos, drained
• 1 (10 3/4-ounce) can condensed cream of celery soup
• 1 cup mayonnaise
• 1 (6-ounce) box long-grain and wild rice, cooked according to package directions
• 1 cup grated sharp Cheddar
• Pinch salt