Chicken a la King - Slow Cooker

Chicken a la King
3 to 4 cups cooked chicken or turkey, diced
1/2 cup green pepper, finely chopped
1/4 cup onion, finely chopped
1/2 cup celery, finely chopped
1 can (4 ounces) sliced mushrooms, drained
2 cans (10 3/4 ounces) cream of chicken soup (or cream of mushroom)
1 pkg. (10 oz.) frozen peas, about 1 1/2 cups
 
Combine all ingredients except peas in slow cooker. Stir gently to mix. Cover and cook on low 5 to 7 hours. Turn to high and add peas about 45 minutes before serving. Serve with biscuits. Serves 4.