Brown the Ground Beef:
In a large pot, cook the ground beef over medium heat until browned. Drain any excess grease.
Add Vegetables:
Add the chopped onion, sliced carrots, cubed potatoes, and sliced celery to the pot. Cook for about 5 minutes until the vegetables start to soften.
Combine Broth and Tomatoes:
Pour in the beef broth and add the diced tomatoes with their juices. Stir to combine.
Season the Soup:
Add salt, black pepper, and dried oregano. Stir well.
Simmer:
Bring the mixture to a boil, then reduce heat to low. Cover and simmer for 20-25 minutes, until vegetables are tender.
Add Green Beans:
Add green beans (trimmed and cut if fresh, or simply add if frozen) and simmer for an additional 5-10 minutes until they are tender.
Serve:
Adjust seasonings if necessary. Serve hot and enjoy!
