Roasted Carrot and Tomato Soup

Heat oven to 375 °F. Arrange tomatoes, carrots, onion and garlic on a heavy duty sheet tray, drizzle with oil, and season with salt, pepper and red pepper flakes. Roast for 50-55 minutes, flipping occasionally, until tender and browned in spots. Add the chicken broth to a large saucepan and bring up to a simmer (reserving 1/3 cup). Remove sheet tray from oven, add tomatoes and the garlic slipped out of its skin into saucepan, and set the sheet tray over two burners on medium high heat. Add the reserved 1/3 cup chicken broth to the bottom of the sheet pan and scrap up any browned spots with the back of a wooden spoon. Add the liquid to the saucepan along with a bay leaf and simmer for 10 minutes so the flavors can marry. Remove bay leaf and pure until smooth using an immersion blender. Serve with a dollop of Greek yogurt, if desired.