Instant Pot Cheesy Hamburger Rice Casserole is an easy, delicious hamburger rice casserole with simple ingredients. Ready in 30 minutes.
Turn on the Sauté setting. When hot, add the oil and the onion. Cook until starting to turn translucent.
Add the ground beef, cook, breaking up the chunks, until just a little pink is still visible.
Add the salt, pepper, garlic powder, and thyme. Stir well to combine. Then continue to cook until meat is done. If there is too much grease for your liking, drain it.
Add he broth and stir.
Add the rice evenly over the top of the meat and do not stir. Just make sure the rice is submerged.
Add the mushroom soup over the top and spread out, but do not stir.
Cancel the sauté setting. Then close the lid and set the steam release knob to the Sealing position. Press the Pressure Cook/Manual button or dial, then the +/- button or dial to select 8 minutes. High Pressure. The pot will take several minutes to come to pressure.
When the cook cycle has finished, immediately turn the steam release knob to the Venting position to Quick Release the steam/pressure.
When the pin in the lid drops back down, open the lid and turn off the pot.
Stir in the corn. Then stir in the cheese, one cup at a time. Add the 3rd cup of cheese only if you like it pretty cheesy.
Let the pot sit for a couple of minutes without a lid so the cheese can melt.
Serve immediately. Garnish as desired.
*Feel free to add mushrooms, carrots, or other veggies to your liking.