- In a large mixing bowl, combine the cannellini beans, chickpeas, sun-dried tomatoes, red onion, and parsley. 
- In a separate small bowl, whisk together the olive oil, red wine vinegar, garlic powder, salt, black pepper, and crushed red pepper flakes if using. 
- Pour the dressing over the bean mixture and gently toss until everything is well coated. 
- Cover the bowl with plastic wrap or a lid and refrigerate for at least 30 minutes to allow the flavors to meld. 
- Serve chilled or at room temperature, and enjoy!