In a measuring cup or small bowl whisk together the extra-virgin olive oil, red wine vinegar, Italian seasoning, garlic powder, kosher salt, and black pepper. Set aside to allow the flavors to combine.
1/2 cup Extra virgin olive oil, 1/4 cup Red wine vinegar, 1 tbsp Italian seasoning, 1/2 tsp Garlic powder, 1/2 tsp Kosher salt, 1/4 tsp Black pepper
Bring a large pot of water to a boil, and add salt. Add the green beans. Cook for 2-3 minutes until bright green and slightly tender.
1 lb Fresh green beans (haricot verts)
Immediately remove them to a large bowl of ice water. Once they are cooled, drain them, then pat them dry with paper towels.
In a large mixing bowl, gently toss the green beans, tomatoes, and red onion. Drizzle the dressing over and carefully toss to coat evenly. Cover the bowl and refrigerate for at least 1-2 hours, stirring every 30 minutes.
1 pint Cherry tomatoes, 1/2 Red onion
Season to taste with additional salt and pepper if needed.