Line a baking sheet with parchment paper. Preheat oven to 425°F.
Cut the cauliflower and broccoli into medium florets. Slice the pepper and zucchini into long strands. Julienned the carrots. Slice the onion. Add the vegetables in a large bowl, mix.
In a small bowl, combine the oil, soy sauce, honey, garlic, ginger, salt and pepper for the sauce. Mix well.
Pour the sauce over the vegetables and toss to combine.
Evely spread vegetable in a baking sheet evenly.
Bake in the oven for 10 minutes. Toss and cook an additional 5 minutes, or until vegetables are desired tenderness.