Begin by cooking the tortellini according to the package instructions until al dente. Drain and set aside.
In a large skillet, heat olive oil over medium heat. Add the sliced bell peppers, zucchini, and broccoli. Sauté for about 5-7 minutes or until the vegetables are tender but still crisp.
Add the halved cherry tomatoes to the skillet and cook for an additional 3 minutes, allowing them to soften slightly.
Reduce the heat to low and pour in the heavy cream. Stir in the garlic powder, Italian seasoning, salt, and pepper. Let the mixture simmer for 2-3 minutes, stirring occasionally.
Add the cooked tortellini to the skillet and gently mix to coat the pasta in the creamy sauce.
Sprinkle in the grated Parmesan cheese and stir until melted and the sauce is creamy. Adjust seasoning if needed.
Remove from heat and let it sit for a minute to thicken slightly.
Serve hot, garnished with fresh basil leaves for an aromatic touch.