Marinated Green Bean Salad

Ingredients 

1/4 cup water 

15 oz frozen French-cut green beans 

1 (15 oz) can whole kernel corn, drained 

1 (15 oz) can black beans, rinsed and drained 

1 (14.5 oz) can diced tomatoes, undrained 

4 stalks celery, chopped (optional) 

1 med green bell pepper, chopped (optional) 

1 med onion, chopped 

1 cup distilled apple cider vinegar 

3/4 cup white sugar 

1/2 cup olive oil 

1 tsp salt 

1 tsp ground black pepper 

Directions 

1. Bring water to a boil in a pot. Add green beans and cook until just crisp-tender, 4 to 5 minutes. Drain and rinse immediately in cold water. 
2. Transfer green beans to a large bowl and stir in corn, black beans, tomatoes, celery, bell pepper, and onion. 
3. Mix apple cider vinegar, sugar, olive oil, salt, and pepper together in a small bowl. Pour over vegetables and stir to coat. Refrigerate, covered, for 4 hours, or up to overnight.