Cook the cheese tortellini according to package instructions. Drain and set aside.
In a large skillet, heat the olive oil over medium heat. Add the diced zucchini, yellow squash, and red bell pepper. Sauté for about 5-7 minutes until the vegetables are tender.
Add the halved cherry tomatoes and minced garlic to the skillet. Cook for an additional 2-3 minutes, stirring frequently.
Stir in the cooked tortellini, dried basil, dried oregano, salt, and pepper. Toss everything together and cook for another 2-3 minutes until heated through.
Remove from heat and sprinkle with grated Parmesan cheese. Toss gently to combine.
Serve warm, garnished with fresh basil leaves if desired.