Cook the cheese tortellini according to the package instructions, usually about 7-10 minutes, until they are tender. Drain and rinse under cold water.

Combine the cooked tortellini with cherry tomatoes, cucumber, bell pepper, red onion, black olives, and feta cheese in a large bowl. Stir gently.

Whisk together olive oil, red wine vinegar, Italian seasoning, salt, and pepper in a separate bowl.

Pour the dressing over the salad and toss until well-coated.

Chill the salad in the refrigerator for at least 30 minutes before serving.