In a medium saute pan, heat olive oil over medium heat and add onion and garlic until fragrant, about 3-5 minutes.
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Add in mushrooms and cook until browned, 5 minutes. Continue to stir to ensure nothing gets burned.
Add rice and toast until translucent, about 2 minutes. Add in chicken broth and bring to a simmer. Once simmering, cover, and let sit for 12-15 minutes until rice is cooked through.
Once done, add in diced green onions and stir to combine. Let sit for 2-3 minutes. Serve and top with more green onions if desired.
Notes
Be sure to keep it on a low simmer to ensure you don't burn the rice on the bottom of the pan.