Bring a large pot of water to a boil. Halve the large sweet and white potatoes, adding them to the boiling water. Cook for 5 minutes, then add whole beets and peeled carrots. Boil for an additional 5 minutes.

Drain the vegetables and cool them under running water. Cut sweet potatoes into ½ inch thick slabs, carving jack-o-lantern shapes. Create ghost shapes from white potatoes and slice beets into slabs for witch's hats. Keep carrots whole.

Preheat your oven to 400°F (204°C). Line a baking sheet with parchment paper.

Arrange the veggie shapes on the prepared baking sheet. Drizzle with olive oil and sprinkle with salt, pepper, and rosemary.

Crush garlic cloves with skin, scatter among the veggies, and roast for 1 hour, flipping halfway through.

In the last 10 minutes, drizzle balsamic vinegar over beets and honey over carrots.

After 1 hour, remove from oven, allow to cool slightly, and serve.