WEBIngredients. 3 medium tomatoes, peeled, seeded, and chopped (about 3 cups) 1 large cucumber, peeled, seeded, and chopped (about 2 cups) 1 red bell pepper, chopped (about. cup) 1 medium onion, chopped (about. 1⁄4 cup) 3 cups canned tomato juice. 2 tbsp fresh herbs (tarragon, thyme, or parsley), chopped.