Wash the green beans thoroughly under cold water.
Trim the ends of the green beans using a sharp knife.
Bring a pot of salted water to a boil.
Add the green beans and blanch for 3-4 minutes.
Prepare an ice bath in a large bowl with cold water and ice cubes.
Transfer the green beans to the ice bath to stop cooking.
Drain the green beans and pat dry.
In a large bowl, combine the green beans and cherry tomatoes.
In a small bowl, whisk together olive oil, balsamic vinegar, garlic, salt, and pepper.
Pour the dressing over the salad and toss gently to combine.
Sprinkle feta cheese and parsley on top before serving.