I'm not sure how it compares taste-wise, but give this recipe a try:
For 6 glasses...
6-8 tomatoes
3-4 green onions with tops
1/2 green pepper
2 carrots
2 Celery stalks with leaves
1/2 bunch spinach
2 lemons peeled
2 tsp. Bragg's Liquid Aminos
1/2 tsp. ground Celery seed
I've wondered the same thing about the pulp...don't know of any particular recipes, but have read that you can use the pulp on salad. I've always thought that it would make pretty paper if you know anyone who makes handmade paper.