Preheat oven to 425?. Toss squash and shallots with olive oil, salt and pepper. My preferred method is to roast in my non-stick skillet, but a baking sheet would probably be the standard. Roast for 25-30 minutes, stirring once. When done, remove from pan and allow to cool.
In the meantime, add water, oil and salt to saucepan. Bring to a boil, remove from heat and add couscous and bulgur. Cover and sit for 10 minutes. Fluff with fork and allow to cool.
Mix mustard, vinegar, remaining olive oil, salt and pepper in large bowl for vinaigrette. Stir in squash and shallots, couscous and bulgur, crumbled goat cheese and fresh herbs if available. Adjust seasoning if necessary. Serve at room temperature or refrigerate prior to serving.