In a large pot, brown the ground meat over medium heat. Break it up as it cooks until no pink remains. Drain excess fat if you want less grease to chase you later.
Add onion and garlic. Sauté until the onion is translucent and smelling irresistible—about 3–4 minutes.
Stir in the chopped pepper, crushed tomatoes, and broth. Bring to a gentle simmer.
Rinse the rice (or quinoa) and stir it in. Add oregano, paprika, salt, and pepper. Simmer uncovered until the grains are tender and the soup thickens to your liking (about 15–20 minutes).
Stir in half of the cheese if you’re using it, letting it melt into the soup with a little love. Taste and adjust seasoning.
Serve hot, topped with the remaining cheese and a sprinkle of parsley if you’re feeling fancy.