Couscous with Mushrooms & Sun-Dried Tomatoes

Heat oil in a large saucepan over medium-high heat. Add onions and tomatoes and stir until the onions are softened, 2 to 3 minutes. Add mushrooms and thyme and stir until the mushrooms give off their liquid and begin to soften, about 5 minutes. Add broth and hot sauce and bring to a boil. Stir in couscous. Remove from the heat and cover. Let stand until the liquid has been absorbed, about 5 minutes. With a fork, fluff the couscous and stir in parsley. Season with salt and pepper to taste.