Chopped taco salad - chinese grandma

Ingredients

• 1 bell pepper, diced (about 1 1/2 cups)
• 2 cups diced cucumber
• 1 pint grape tomatoes, halved (2 cups)
• 1 8-ounce can sliced black olives
• 1 15-ounce can black beans, drained and rinsed
• 1/2 cup feta
• 1 teaspoon dried oregano
• 1/2 teaspoon salt
• 1/2 teaspoon pepper
• 1 garlic clove, minced
• 1/4 cup red wine vinegar
• 1/4 cup olive oil