Italian Tomato Cucumber Salad

Ingredients (7)

• + 4 tomatoes on the vine, cored and chopped add to pantry
• + ½ red onion, thinly sliced add to pantry
• ✓ ½ seedless English cucumber, chopped
• ✓ 3 tablespoons extra-virgin olive oil, or more if needed
• + 1 tablespoon chopped fresh oregano add to pantry
• + salt and ground black pepper to taste add to pantry
• ✓ salt and ground black pepper to taste