Cover and bring to a boil over high heat.
Adjust heat to maintain a lively simmer.
Cook until the vegetables are tender, about 15 minutes.
Meanwhile, preheat oven to 350F.
Coat a 9-by-13-inch baking dish with cooking spray.
Drain the vegetables and return to the pot; mash with a potato masher.
Scrape into the prepared baking dish.
Sprinkle with the remaining 2 teaspoons thyme.
Bake until golden brown on top, 1 to 1 1/4 hours.
Let stand for 15 minutes before serving.
Tips
To make ahead:Prepare through Step 3 and refrigerate for up to 2 days.
Let stand at room temperature while the oven preheats.
- Daily Values (DVs) are the recommended amounts of nutrients to consume each day.
(-) Information is not currently available for this nutrient.
