Preheat the oven to 400 degrees F.

In a large ovenproof saucepan, heat 1 tablespoon olive oil over medium high heat. Sauté the onions until soft and translucent, about 3-4 minutes.  Add the garlic, salt, pepper and red pepper flakes cooking until fragrant, about 30 seconds.

Stir in the farro and cook for 1 minute. Pour in the wine, letting it bubble and be absorbed by the farro.

Add the tomatoes and vegetable broth and bring to a boil. Cover the saucepan with a lid and transfer to the oven. 

Bake for 30-35 minutes until the farro is tender. Stir in grated Parmesan and parsley. Top with grated Parmesan before serving.