Preheat oven to 450°. Line a roasting pan with aluminum foil.
In a large bowl, combine tomatoes, onion, carrots, garlic, olive oil, 1 teaspoon salt, and 1 teaspoon black pepper, tossing gently to coat vegetables. Place in prepared pan; bake for 1 hour, stirring halfway through cooking time. Remove from oven; cool for 10 minutes.
In the container of a blender, purée vegetables, in batches, until smooth.
In a Dutch oven, combine vegetable purée, chicken broth, lemon juice, Worcestershire sauce, remaining ½ teaspoon salt, remaining ½ teaspoon black pepper, and red pepper, if desired, whisking until smooth. Bring to a simmer over medium heat; cook for 10 minutes.
Recipe by Southern Lady Magazine at https://southernladymagazine.com/roasted-tomato-soup-and-grilled-cheese/