Cook the tortellini according to the package directions. Drain, rinse with cold water, and set aside. Return the cooking pot to the stove and set the heat to medium-high.

Add the butter and olive oil. When the butter is melted, add the garlic and pepper. Cook for 30 seconds then remove from heat.

Add the cooked tortellini to the butter mixture and toss to coat.

Add the lemon juice, lemon zest, chives, parsley, dill, and half of the parmesan cheese, then toss again.

Sprinkle with remaining parmesan cheese and serve.