Preheat the Griddle: Heat your Blackstone griddle to medium and add olive oil to coat the surface.
Cook the Tortellini: Boil the tortellini according to package instructions (2-3 minutes for fresh, longer for frozen). Drain and set aside.
Sauté Vegetables: On the griddle, cook the diced vegetables and garlic for 5-7 minutes until they’re tender and slightly charred. Season with salt and pepper.
Add Tortellini: Toss the cooked tortellini onto the griddle, mixing with the vegetables. Let it crisp up for 3-4 minutes, stirring occasionally.
Add Cream and Parmesan: If making a creamy version, add the heavy cream and sprinkle Parmesan cheese over the mixture. Stir until combined and heated through.
Serve: Garnish with fresh basil or parsley and serve immediately.