In the bowl of the food processor, add the beans, tahini, lemon juice, garlic, and tomatoes. Process for a few seconds to get the mixture started. While the processor runs, begin drizzling in the seasoned olive oil, starting with 2 tablespoons, adding more as necessary to create a smooth paste. Serve with raw vegetables or whole wheat pita or baguette slices.
Variations:If you do not have slow-roasted tomatoes, you can use commercially prepared sun-dried tomatoes in olive oil.