Easy Italian Potato Salad - red potatoes

Ingredients

• 5 to 6 medium red potatoes, cooked and cut into 1-inch pieces
• 2 garlic cloves, minced
• 1/2 cup chopped red onion
• 3 to 4 plum tomatoes, quartered
• 1/3 cup olive oil
• 3 to 4 fresh basil leaves, chopped
• 1 jar (5-3/4 ounces) pimiento-stuffed olives, drained and halved
• 1 teaspoon dried oregano
• 1-1/2 teaspoons salt
• 1/4 teaspoon pepper
• Lettuce leaves, optional