Hit “Saute” button on Instant Pot. Add oil. When hot, add the onions, carrots, and celery. Saute, stirring occasionally, until tender, about 5 minutes. Add the garlic, cumin, turmeric, thyme, 1 teaspoon salt, and 1/4 teaspoon pepper and cook, stirring constantly, for one minute.
Add the lentils and pour in the broth. Stir.
Place the lid on the Instant Pot and make sure the release valve is in the “sealing” position. Press the “Manual” button and set the timer at 14 minutes.
The Instant Pot will warm up for about 10 minutes and then start cooking. After the 12 minutes is up, quick-release by flipping the release valve to “venting” (a little bit at a time at first).
Once venting is complete, remove the lid of the Instant Pot. Stir in the spinach. Taste and add additional salt and pepper if desired. Serve.
Keeps in the refrigerator for about 3 days. Freezes well too!
