– First, add the olive oil to the instant pot inner pot and turn on the sauté function. When the oil starts to sizzle, add finely chopped onion, sauté for 1-2 minutes until translucent, and add the meat, tomato, tomato paste, and rinsed yellow split peas. Sauté for a couple of minutes; now add pierced dried lemon, liquid saffron, and water.