Spanish Gazpacho

Name: Spanish Gazpacho
Ingredients: 2 pounds tomatoes, peeled and halved; 1 cucumber, peeled and sliced; 1 green bell pepper, sliced; 0.5 onion, sliced; 1.5 tablespoons red wine vinegar; 1 clove garlic; salt to taste; 0.25 cup extra-virgin olive oil; 0.25 cup cold water, or as needed; 0.5 onion, chopped; 1 green bell pepper, chopped; 1 cucumber, chopped