In a large pot or Dutch oven heat cooking oil and butter to a sizzle over medium high heat. Add in green bell pepper and onion. Season with salt & pepper. Stir until softened.
Add in ground beef and break up while browning. Once ground beef is browned add in garlic and cook for 1 minute. Drain any excess grease.
Stir in diced tomatoes and juice, tomato soup, dried parsley, Italian seasoning, sugar, and beef broth. (4 cups for a thicker soup and up to 6 cups for a thinner soup.) Bring to a boil.
Add in ravioli, season with salt & pepper if needed and cook per instructions on back of package, generally around 4-6 minutes or until tender.