Cook the tortellini in a large pot of salted boiling water according to package instructions. Drain and set aside.
While the tortellini cooks, add chopped bacon to a large skillet over medium heat. Cook until crispy. Remove and drain on paper towels, leaving about 1 tablespoon of bacon fat in the pan.
Add minced garlic to the bacon fat and sauté for about 30 seconds until fragrant. Remove skillet from heat.
In a mixing bowl, whisk together eggs, Parmesan cheese, and heavy cream until smooth.
Add cooked tortellini to the skillet and pour the egg mixture over it. Toss quickly to coat, using residual heat to gently cook the sauce without scrambling the eggs.
Stir in the cooked bacon. Season with salt and pepper to taste.
Garnish with fresh parsley if desired. Serve immediately.