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 onion and sauté until translucent, about 3-4 minutes.
Add the minced garlic and cherry tomatoes to the skillet, cooking for an additional 2-3 minutes until the tomatoes start to soften.
Pour in the heavy cream, lemon juice, and dried dill. Stir well and let the mixture simmer for 2-3 minutes until slightly thickened.
Gently fold in the flaked salmon and cooked tortellini. Season with salt and pepper to taste. Cook for another 2-3 minutes until everything is heated through.
Serve hot, garnished with fresh parsley.