Lightly steam broccoli on the stovetop for 3-4 minutes then set aside.
In your Instant Pot, press Saute. Add 1 ½ tablespoon of the butter to pot and melt. Once your butter is melted, add in onion and garlic. Let cook for 2-3 minutes or until onions start to turn translucent.
Add rice and stir for 1-2 minutes to toast.
Gradually stir in vegetable broth and remaining butter.
Hit cancel. Secure lid in place, turn valve to Sealing, press Manual and set timer to 7 minutes.
When the timer is up, turn the valve to Venting to Quick Release. Open the lid and stir well.
Turn the setting to Saute. Add broccoli, fresh dill, garlic powder, red pepper flakes, lemon juice and zest to the rice. Stir for 1-2 minutes.
Taste and adjust seasoning. Stir in nutritional yeast if using then serve.