Heat olive oil in a large skillet or Dutch oven over medium-high heat. Add chicken, salt, and pepper. Cook until browned on all sides, about 5-7 minutes.
Add minced garlic to the skillet and cook for 1 minute until fragrant.
Pour in chicken broth and bring to a simmer. Add the refrigerated tortellini.
Reduce heat to medium-low, cover, and simmer for 8-10 minutes, or until tortellini is tender.
Stir in heavy cream and grated Parmesan cheese. Cook, stirring, until the sauce is thickened and heated through, about 2-3 minutes.
Garnish with fresh parsley before serving.
Notes
For a vegetarian option, omit the chicken and use vegetable broth.
You can substitute rotisserie chicken for cooked chicken.
Add a handful of spinach or peas in the last few minutes of cooking for extra vegetables.