Hot Chicken Salad Casserole

3 cups chicken -- chopped
2 cups cooked rice
1 cup diced celery
1/2 cup mayonnaise
2 ounces chopped pimentos
1 cup cream chicken soup -- undiluted
1 small can chopped mushrooms -- optional
3 Hard boiled eggs -- chopped
2 tablespoons green peppers -- optional
2 tablespoons chopped onions
1 tablespoon lemon juice
Salt and pepper to taste
1/4 cup slivered almonds
1 cup dry bread crumbs