Fast, Fresh Grape Tomato Salad

2 cups halved grape tomatoes

1 tablespoon olive oil

1 tablespoon sweetened rice vinegar

¼ teaspoon garlic powder

¼ teaspoon dried oregano, or to taste

1 pinch salt to taste

Mix tomatoes, olive oil, rice vinegar, and garlic powder together in a bowl. Crumble oregano between fingers to release flavor and add to the tomatoes; stir to coat. Season with salt. Let flavors marinate before serving, 5 minutes or up to an hour.