Place the chickpeas and chicken stock in the bowl of a food processor. Pulse until coarsely chopped.
In a medium pan, heat the olive oil over medium heat and add tomatoes. Saute for 3 to 4 minutes, or until the tomatoes are softened. Add the garlic and cook for 1 more minute. Add the chopped chickpea mixture, and cook for about 5 minutes, or until heated through.
Remove from heat, and stir in the Parmesan, parsley, lemon juice, and salt and pepper to taste. Serve warm (or at warm temperature) with crusty bread or pita chips.