Before You Begin
Prepare your cookware as needed. Cooking times and results may vary depending on your equipment and ingredients.
Preheat the broiler to high. Cut bell peppers in half, remove seeds, and place skin-side up on a baking sheet. Broil for about 8–12 minutes, until skins are blistered and charred.
Transfer peppers to a heat-safe bowl and cover tightly (or place in a sealed bag) for 10 minutes to steam. Peel off skins once cool enough to handle.
Cook tortellini according to package directions until tender. Drain and set aside.
In a large pot over medium heat, melt butter. Add onion and garlic and cook until softened and fragrant, about 3–5 minutes.
Add peeled roasted peppers to a blender with the onion mixture. Blend until completely smooth.
Return the blended mixture to the pot. Stir in vegetable broth and bring to a gentle simmer.
Reduce heat to medium-low. Stir in heavy cream and spinach. Cook until spinach is wilted. Do not boil after adding cream.
Add cooked tortellini and most of the Parmesan cheese. Stir gently and heat until warmed through and steaming, reaching 165°F (74°C).
Taste and adjust seasoning if needed. Serve topped with remaining Parmesan and parsley.