Heat oil in a large stockpot over medium-high heat. Add cubed steak and cook, stirring frequently, for about 2-3 minutes.
Add in onion, celery, carrots, bell pepper, and garlic, and sauté for about 4-5 minutes, or until veggies soften.
Stir in potatoes, Italian seasoning, broth, diced tomatoes, tomato sauce, and Worcestershire sauce.
Bring to a boil, then reduce the heat and simmer for 20-25 minutes, or until potatoes and beef are tender.
Add green beans and corn, and cook for a couple of minutes more. Season with salt and pepper, and pour into bowls.
Garnish with fresh chopped parsley and enjoy!
Notes
Please keep in mind that the nutritional information is calculated using a nutrition facts calculator. It is a rough estimate and can vary greatly based on products used.
Substitutes:
Beef: other substitutes could be chicken breast or ground beef.