Place gnocchi, pesto, heavy cream, broth or wine, garlic, peas, and salt and pepper in a large resealable bag.
Remove excess air and seal.
Place Parmesan cheese in a medium bag.
Seal and staple above the seal to the large bag.
Freeze.
Thaw.
Bring large bag ingredients to a gentle boil in a large skillet over medium heat.
Cover and cook for 5 minutes.
Top with Parmesan cheese and allow the cheese to melt before serving.