With a handful of shortcut ingredients from your local specialty grocery store, you can prepare an entire week's worth of high-fiber meals in about 15 minutes. Look for precooked wild rice packets to cut down on prep time. Plus, wild rice is a good source of fiber and each pouch of cooked rice heats in 3 minutes. Topping these bowls with prebaked tofu also cuts down on the time it takes to make this quick meal-prep lunch.