In a saucepan, bring the vegetable broth to a boil. Slowly whisk in the grits and reduce the heat to low. Cook, stirring frequently, until the grits are thick and creamy, about 5-7 minutes.
Stir in the nutritional yeast, chopped spinach, diced tomatoes, garlic powder, onion powder, salt, and pepper. Mix well.
Pour the mixture into a lightly greased baking dish and spread it out evenly.
Bake in the preheated oven for 30-35 minutes, or until the top is golden and the casserole is set.
Let it cool for a few minutes before serving. Enjoy!
Notes:
This vegan grits casserole is perfect for a cozy dinner or a hearty breakfast. Feel free to add your favorite veggies!