Add the vegetables: stir in diced carrots and celery, cooking for an additional 2-3 minutes until they soften.
Stir in red split lentils and tomato sauce, mixing thoroughly to combine.
Season the mixture with turmeric, oregano, thyme, and bay leaf, adding salt and pepper to taste. Stir together, letting spices bloom for a minute.
Pour in the veggie broth, scraping up any bits stuck on the bottom for added flavor.
Pressure cook the soup: secure the lid and cook on high pressure for 10 minutes. Let the pressure release naturally for 5 minutes before performing a quick release.
Add fresh greens: stir in baby spinach and chopped parsley, letting the residual heat wilt the greens.
Taste your soup and adjust the seasoning as needed, adding more salt, pepper, or herbs.
Notes
This soup stores beautifully in an airtight container in the fridge for up to 4 days or freezes well for up to 3 months.