Pre-heat the oven to 400 degrees F.
Wash the vegetables. Chop them into bite-sized pieces.
Place the vegetables in a medium mixing bowl. Toss them with the olive oil, chopped garlic, and freshly-ground salt and pepper.
Arrange the vegetables in a single layer on a baking sheet.
Bake for 10-12 minutes. Toss the vegetables. Then bake for another 10-12 minutes or until the vegetables are cooked through and slightly crispy.