Quick Beef Casserole

1/2 lb lean ground beef
1 C onion, chopped
1 C celery, chopped
1 C green pepper, cubed
3 1/2 C tomatoes, diced
1/4 tsp salt
1/2 tsp black pepper
1/4 tsp paprika
1 C frozen peas
2 small carrots, diced
1 C uncooked rice
1 1/2 C water