Press the Sauté function on the control panel of the Instant Pot. Click the Adjust key and you can choose less, normal or more- heat setting. I selected the normal, it will start to heat up and you will see ON sign on the LED display. After the pot has turned hot, you will see the HOT sign on the display. Now, you can start sautéing. Important: While sautéing do not close the pot with the instant pot lid. Add 1 tablespoon oil , let it turn hot. Add onion, season with salt and sauté for a few minutes till light golden. Add ground beef, break the ground beef using an wooden spoon to avoid formation of lumps. Sauté for a few minutes till the pink color has faded. Add garlic powder, chili powder, cumin powder, coriander powder, dried oregano and salt. Combine well. Add green pepper, red pepper and chopped tomato. Combine well. Add tomato sauce, soy sauce and water, combine well. Close the lid. Click on the Cancel key to cancel the sauté mode. Make sure the pressure release valve on the lid is in the sealing position. Click on Manual function first and then click on Pressure, select high pressure. (there are 2 options: low and high pressure). Click the + button and set the time to 15 minutes and walk away. After 15 minutes of pressure cooking, it will beep. You can either have the steam release naturally, it will take around 20 minutes. Or after 10 minutes, turn the pressure release valve on the lid to venting and you can see the steam releasing. Be careful as the steam is very hot. After the pressure has released completely, open the lid. If the stew is watery, you can cook for a few more minutes by turning on the sauté function. Sauté, Adjust to normal and let cook for a few more minutes. Add cilantro and corn if adding at this point, combine well and let cook for a few minutes. I served this with pasta, add pasta into a bowl, top with ground beef stew and add cheddar cheese on top and serve. Enjoy!