Preheat oven to 190C (375F) and place baking sheet inside to preheat.
In a large mixing bowl toss carrots with garlic and oil and season with salt and pepper.
Place carrots on pre-heated tray in a single layer and roast for about 12-15 minutes until carrots are tender and have just started to brown.
Remove from oven and sit 5 minutes to cool.
Transfer to a large mixing bowl and toss with dill. I skipped this step and put them straight into the serving dish and sprinkled with dill. Why dirty another bowl if you don't need to right?!
Place carrots on a large platter and serve warm or at room temperature.