Add lamb cubes to a large bowl, then add salt, pepper, and ½ of the flour. Toss to coat the lamb.
Preheat the Instant Pot on the Saute setting, High heat. Once preheated, add olive oil.
In two batches, place lamb meat in the pot and sear on each side until lightly golden. Remove from lamb from the pot and set aside. (Note: if the pot indicates that it's too hot, turn the heat down to medium)
Add additional olive oil if needed. Then add onions, carrots, and celery to the pot. Saute for 5 minutes.
Turn the pot off. Add broth to the pot and stir, scraping any bits off the bottom of the pot.
Add lamb (and any juices that have accumulated), potatoes, thyme, and peas to the pot. Stir to combine.
Secure the lid and close valve. Select Pressure Cook, High, 27 minutes. Once the cooking cycle is complete, use the quick release method to release pressure.
In a small bowl add remaining flour, then 2 ladles full of broth. Whisk together until lumps are gone. Add to the stew and stir in.
Stir in fresh parsley. Adjust seasoning if necessary, and serve.
Kori's Tips
Don't miss all of our helpful hints, substitution ideas, cooking tips, and other delicious recipes that can be found in our post. Check it out!
SUBSTITUTIONS: Use any favorite potato variety including baby potatoes; sub beef or veal for the lamb - or use a combination; see the ingredient suggestions and variation tips in the post for more suggestions.
TOP TIPS: Eliminate the flour if you prefer a less thick broth or can't consume it due to dietary restrictions; to save time you do not have to sear the lamb or caramelize the vegetables. Add lamb, vegetables, flour, salt, and pepper and stir all together. Add stock and remaining ingredients then pressure cook.
SERVING SUGGESTIONS: Serve with a side of crusty bread, rolls, or breadsticks. If you want more vegetables serve it with a simple green salad.