In the inner liner of your Instant Pot or Pressure cooker, place rice, frozen vegetables, water, oil, chicken bouillon powder, curry powder, thyme leaves and salt. Stir to mix.
Set the pressure cooker to cook on high pressure for 4 minutes. At the end of the cook time, allow the pot to sit undisturbed for 5 minutes and then release all remaining pressure.
Gently stir in the cooked shrimp, taking care to not break the rice grains. Cover the pot with the lid and let it rest for an additional 5 minutes so that the shrimp can heat through. You can also do this with uncooked shrimp, but you may have to let the covered pot sit for a little longer to allow the shrimp to cook.
Feel free to substitute rotisserie chicken, leftover ham, cooked turkey, or whatever sort of cooked meat you have--or leave it out for a vegetarian version.