Place the roasted peppers in a blender or food processor and blend until smooth. Set aside.
Heat the olive oil in a large pot over medium heat. Add the onion and garlic and cook until softened, about 5 minutes. Add the smoked paprika, oregano, cumin, and red pepper flakes and cook for 1 minute more.
Add the vegetable broth and the blended peppers and bring to a boil. Reduce the heat and simmer for 20 minutes.
Season with salt and pepper, to taste.
Divide the soup among bowls and top with a dollop of Greek yogurt and a sprinkling of parsley, if desired.
Interesting Facts
Roasting peppers is a great way to add smoky flavor to dishes.
This soup is a great way to use up any leftover roasted peppers.