In Foodi add oil to bowl and turn on sear function on med hi. While oil is heating, in a small bowl combine ¼ cup of flour and 1 Tbsp cornstarch and dredge stew meat with flour mixture until well coated.
Once oil is to temperature, add stew meat in an even layer and brown on all sides.
Once meat is browned, add all other ingredients and stir.
Using the pressure cooker lid, turn Ninja Foodi on pressure and set on high for 10 minutes. Once complete, allow for natural release.