Cook the Bacon: In a large skillet, heat to medium and fry the sliced bacon until crispy and golden brown, about 6-8 minutes.

Transfer the bacon to a paper towel-lined plate to drain excess grease, then chop into bite-sized pieces.

Prepare the Tortellini: Bring a pot of salted water to a rolling boil and add the frozen cheese tortellini. Cook until al dente, about 3-5 minutes.

Drain the tortellini in a colander and rinse under cold water to stop cooking and cool them down.

Make the Dressing: In a medium bowl, whisk together mayonnaise, red wine vinegar, garlic powder, oregano, Italian seasoning, and red pepper flakes until smooth.

Combine Ingredients: In a large mixing bowl, add cooled tortellini, chopped bacon, sliced pepperoncini, diced red onion, and halved tomatoes. Sprinkle grated Parmesan cheese, then drizzle with creamy dressing and fold gently.

Chill the Salad: Cover the bowl with plastic wrap and refrigerate for at least 2 hours.

Serve: Give the salad a gentle stir and serve cold or at room temperature.