1In a large pot, heat the olive oil over medium heat. Add the onion and garlic and cook until tender, about 5 minutes.
2Stir in the bay leaves and crushed red pepper flakes.
3Add the diced tomatoes and vegetable broth. Stir in fresh basil and season with salt and black pepper. Simmer on low for 15 minutes.
4Remove the bay leaves from the pot. Use a hand blender to blend the soup. Stir in the Greek yogurt until well combined.
5Stir in the cheese tortellini and cook on medium-low until tortellini is cooked, about 7-8 minutes.