Preheat your oven to 350 F
In a large casserole dish, at least 9 x 13u0022 big, layer your rice and mix it with the 1 tbsp of olive oil and salt
In a medium bowl, mix together the sliced mushrooms, broccoli florets, onion, salt, pepper, garlic, nutritional yeast and butter.
Layer the veggie mixture over the rice and flatten into the baking dish.
Pour the vegetable broth over the dish, and cover with tinfoil.
Bake covered for 40 minutes covered. Remove from oven, give it it a mix and remove the foil. Continue baking for an additional 10-15 minutes uncovered, until the rice is fluffy and all liquid is absorbed.
Let rest for 10 minutes, fluff together and top with scallions or red pepper flakes. Serve fresh!