1. Cook noodles according to package directions, omitting salt and fat; drain.
2. Sprinkle pork with 1/4 teaspoon salt and 1/4 teaspoon black pepper. Heat a large skillet over medium-high heat. Add 2 teaspoons oil; swirl to coat. Add pork; cook 4 minutes, browning on all sides. Remove pork from pan. Reduce heat to medium. Add remaining 1 tablespoon oil to pan; swirl to coat. Add onion, bell pepper, garlic, remaining 1/4 teaspoon salt, and remaining 1/4 teaspoon black pepper; sauté 4 minutes or until vegetables are tender. Add flour, tomato paste, thyme, and paprika; sauté 30 seconds. Add wine; cook 1 minute, scraping pan to loosen browned bits. Add stock and vinegar; bring to a boil. Add pork; reduce heat, and simmer 5 minutes or until pork is tender. Remove pan from heat; stir in sour cream. Serve over noodles.