Company's Casserole

Brown:
1 lb ground Hamburger
Add:
1 chopped medium Onion
1 chopped Bell Pepper
½ C chopped Celery
Add:
2/3 C White Rice (uncooked)
½ C Water
1 Can Cream of Mushroom Soup
1 small Can Mushrooms
1 small Can Pimentos
Place all ingredients into a greased casserole dish
Sprinkle top with:
1 C grated Cheese
Bake at 350* for 1 hour