Preheat the oven to 425°F.
In a medium saucepan add the butter and cook over medium heat. The butter will melt, then bubble, and finally start to froth. Whisk often until it froths then start to whisk continuously. As the froth clears you’ll start to see the bottom of the pan and brown bits will begin to form. Remove it immediately from the heat and continue to whisk as it will continue browning because the pan is hot. Pour the brown butter into a small dish if you’re worried about overcooking.
Peel all of the vegetables and cut them all into 1-inch pieces. See the recipe video above for exact methods of cutting the vegetables like we did in these photos.
Transfer the veggies to a large-rimmed baking sheet. Pour the brown butter overtop and toss to coat. Alternatively, use 2 tablespoons of olive oil.
Mix the rosemary, sage, thyme, salt, and garlic powder in a small bowl. Sprinkle it evenly on top of the vegetables. Use a spoon or clean hands to toss everything together until all of the vegetables are coated in the spices. Do your best to flatten them out into an even layer. It’s ok if a few overlap at first.
Roast in the preheated oven for 25 minutes. Carefully remove from the oven and use a wooden spoon or spatula to toss the veggies then flatten them to an even layer. Roast for another 10-15 minutes, until they’re fork tender and the edges and bottoms start to caramelize.
Serve warm with fresh chopped parsley, sage leaves, or spoon some brown butter on top