Creating Easy 3-Bean Salad is a breeze if you follow these simple steps:

1. In a large mixing bowl, combine the kidney beans, black beans, and garbanzo beans.
2. Add the diced bell peppers, diced red onion, corn kernels, and chopped parsley to the bowl.
3. In a separate small bowl, whisk together the olive oil, red wine vinegar, Dijon mustard, garlic powder, salt, and pepper.
4. Pour the dressing over the bean mixture and gently toss to combine.
5. Cover the salad and refrigerate for at least one hour to allow the flavors to meld.
6. Before serving, give the salad a good stir and adjust seasoning if necessary.

This straightforward process will help you create a delicious Easy 3-Bean Salad that everyone will love!