In a large pan, heat extra virgin olive oil over medium heat and sautée the finely chopped onion for 5-7 minutes while stirring, or until the onions turn translucent.
Add the sliced mushrooms, minced garlic, and thyme, and cook while stirring for another 2-3 minutes.
Add the rice to the pan and sautée for 1 minute, stirring continuously.
Add a cup of hot vegetable stock to the hand and give it a stir. Let the rice soak up the stock. It should take about 5 minutes. When the rice has absorbed almost all of the liquid, add another cup of stock, and repeat until you are out of stock. This process should take about 20 minutes.
When your risotto is a few minutes away from being fully cooked, add the vegan butter, and nutritional yeast, and give stir it all together. Cover the pan, take it off the heat, and let it set for 5 minutes.
While the risotto rests, heat a medium pan on medium heat. Heat extra virgin olive oil and cook the vegan scallops. Cook for 3 minutes per side, or until they brown nicely. Take them onto a plate.
Plate the risotto and top with the seared scallops. Serve immediately.