Set the Instant Pot to the ‘Sauté’ function and heat 1 tablespoon of olive oil. Brown the beef in batches for 3-4 minutes per side, then remove and set aside.
- In the same pot, sauté the onion, garlic, carrots, and celery for 2-3 minutes until the onion softens.
- Add a splash of beef broth to deglaze the pot, scraping up any browned bits from the bottom for extra flavor.
- Return the beef to the pot along with diced tomatoes, beef broth, paprika, thyme, oregano, black pepper, salt, Worcestershire sauce, and tomato paste. Stir to combine.
- Close the lid, set the valve to ‘Sealing,’ and cook on ‘Pressure Cook’ (high) for 35 minutes.
- Once cooking is complete, perform a quick release by turning the valve to ‘Venting.’
- If adding pasta, stir in the uncooked elbow macaroni and pressure cook for an additional 5 minutes. Perform a quick release again.
- Stir, taste, and adjust seasoning as needed. Garnish with chopped parsley before serving.