Preheat oven to 400 F. Option to line 2 rimmed baking sheets with parchment paper for easy cleanup.
Place diced veggies in a large bowl (I usually have to do this in 2 bowls so it's easier to toss). Drizzle oil and balsamic vinegar on top, and toss veggies until they're evenly coated. Sprinkle with rosemary, thyme, salt, and pepper, and toss again.
Spread veggies onto prepared baking sheets in an even layer, making sure not to overcrowd the veggies--if they look crowded on 2 baking sheets, feel free to grab a 3rd for best results. Roast in preheated oven until tender to your liking (the butternut squash and broccoli will take the longest to cook), between 30-40 minutes. Taste salt and pepper and adjust before serving. Enjoy!