Prepare: Select Sauté on the Instant Pot and allow it to heat for a couple minutes.
Sauté: Add a couple splashes of the water, the mixed vegetables, red bell pepper, cannellini beans, green curry paste, ginger, sugar, onion powder, garlic powder, and kosher salt. Sauté, for 5 to 7 minutes, stirring frequently, until the vegetables start to soften.
Add liquids and rice: Add the lite coconut milk, the rest of the water, and the brown rice. Stir well.
Pressure cook: Press the Cancel button. Lock the lid into place and select Pressure Cook on High for 23 minutes.
Release pressure: At the end of the 23-minute cooking cycle, let the pressure release naturally for 10 minutes. Then, adjust the valve to Venting (it helps to do this with a long-handled spoon to keep your hand from getting spattered with steam) and release any remaining pressure.
Serve: When the float valve drop, open the lid. The contents will look liquidy, but they will thicken over time. Add the spinach and the juice of ¼ of a lime. Stir until the spinach is just wilted. Taste and add more lime juice and/or a pinch of salt, if desired. Garnish with fresh Thai basil and/or cilantro leaves before serving.