Heat remaining 1 tablespoon oil in pot. Add onion; cook and stir 3 minutes or until softened. Add bell peppers; cook and stir 2 minutes. Add tomato paste, garlic, chili powder, paprika, cumin, oregano, remaining 1 1/2 teaspoons salt and 1/2 teaspoon black pepper; cook and stir 1 minute. Stir in water, scraping up browned bits from bottom of pot. Return beef to pot with tomatoes; mix well.