Preheat oven to 350 degrees.
Wash and clean veggies well.
Slice the zucchini and squash down the middle, long wise. Slice them into about ¼ inch pieces and place in a bowl.
Slice the baby carrots in half and place in the bowl with the already sliced veggies.
Add the rest of the ingredients except the tajin seasoning and mix well.
Pour onto a large baking sheet and spread even.
Sprinkle with tajin seasoning and bake for 25 minutes.