Bring a large pot of salted water to a boil over high heat. Add the tortellini and cook according to package instructions, usually about 3-5 minutes.

In a large skillet, melt butter over medium heat. Once melted, pour in heavy cream and sprinkle garlic powder. Bring to a gentle simmer for 3-5 minutes until slightly thickened.

Gradually stir in Parmesan cheese until it melts completely, about 2-3 minutes, adjusting salt and pepper to taste.

Carefully add the drained tortellini into the skillet, tossing to coat evenly in the sauce. Cook together for an additional minute.

Remove from heat and transfer to serving plates. Garnish with chopped parsley if desired and serve immediately.