Brown the Beef In a large Dutch oven, heat olive oil over medium-high heat. Season the beef with salt and pepper, then sear until browned on all sides. This builds the flavor base.
Build the Base Add the onion, orange bell pepper, and garlic. Cook until softened, about 4–5 minutes. Stir in the tomato sauce, garlic powder, paprika, and oregano. Mix well.
Simmer the Broth Pour in 7 cups of water. Cover and simmer for 30 minutes to allow the flavors to deepen and the beef to begin tenderizing.
Add Root Vegetables Stir in the sweet potato, yellow potatoes, carrots, and parsley. Cover and continue cooking until just tender, about 20 minutes.
Finish with Greens Add chopped zucchini and kale. Season with additional salt and pepper as needed. Cook for another 20–30 minutes, until all vegetables and beef are fully tender.
Serve In individual bowls, add a scoop of cooked pasta. Ladle the hot beef and vegetable soup over the top. Garnish with extra fresh parsley, if desired.