Begin by preheating your oven to 375°F (190°C). Lightly grease a medium-sized casserole dish with a splash of olive oil to prevent sticking.
In a medium saucepan, combine the rinsed quinoa with 2 cups of vegetable broth (or water). Bring the mixture to a rolling boil. Once boiling, reduce the heat to low, cover the pot with a lid, and allow it to simmer for 15 minutes. The quinoa is ready when it appears fluffy and all the liquid has been absorbed.
While the quinoa is cooking, prepare a large mixing bowl. Add the cooked quinoa, halved cherry tomatoes, chopped basil, minced garlic, and both the shredded mozzarella and grated Parmesan cheeses.
Drizzle the mixture with 2 tablespoons of olive oil, then sprinkle in the dried oregano. Season with salt and black pepper to taste. Thoroughly mix all the ingredients until they are well incorporated.
Transfer the quinoa and cheese mixture into the prepared casserole dish, spreading it out evenly. If desired, reserve a bit of the shredded mozzarella to sprinkle on top for an extra cheesy and appealing crust.
Place the casserole dish in the preheated oven and bake for 25-30 minutes, or until the cheese is delightfully melted and turns a golden brown.
Once done, remove the bake from the oven and let it sit for a few minutes to cool slightly before serving. For a vibrant touch, garnish with additional fresh basil leaves.
Notes
Serve straight from the casserole dish for a rustic feel. Garnish with fresh basil and olive oil.