Begin by setting your Instant Pot to 'Sauté' mode. Once the pot is heated, add the olive oil. Wait for the oil to shimmer before adding the diced onion. Sauté for about 3 minutes until the onion becomes soft and translucent, stirring occasionally to prevent burning.
Next, add the minced garlic, sliced carrots, and celery into the pot. Continue to sauté everything together for an additional 2 minutes, allowing the vegetables to soften slightly.
Sprinkle in the dried thyme, dried oregano, and freshly cracked black pepper. Stir the mixture, toasting the spices for about 30 seconds to enhance their flavors.
Carefully pour in the chicken broth, using a spatula to scrape up any bits stuck to the bottom of the pot (this adds flavor!). Incorporate the shredded chicken into the broth and bring the entire mixture to a gentle simmer.
Once simmering, secure the lid on the Instant Pot and ensure the valve is set to 'Sealing.' Pressure cook on 'High' for 7 minutes.
When the cooking time concludes, perform a quick release of the steam by carefully turning the valve to 'Venting.' Stand back to avoid steam burns.
After the steam has fully released, open the lid and carefully stir in the egg noodles. Switch the Instant Pot back to 'Sauté' mode, cooking for an additional 5-7 minutes until the noodles reach your desired tenderness, stirring occasionally.
In the last minute of cooking, fold in the frozen peas, allowing them to warm through. Take a moment to taste the soup and adjust the seasoning with salt as needed.
To serve, ladle the comforting soup into bowls and generously garnish with freshly chopped parsley for a pop of color and flavor.
Notes
Serve the soup in warm bowls with a side of crusty bread for a cozy experience.