Grate the peel of 1 lemon with a microplane grater and squeeze the juice. Combine with the roasted garlic Vegenaise and refrigerate until serving.
Cut the remaining lemon into wedges and squeeze the juice into a large bowl of cold water. Toss in the wedges as well.
Cut the tips and bottom off the artichokes, peel the stalks with a vegetable peeler and cut the sharp points of the leaves off with a pair of scissors. Cut the artichokes in half and remove the thistle from the center with a pairing knife. Cut the halves in half again and put directly into the lemon water to keep from turning brown. Remove the artichokes from the lemon water and place on a large piece of heavy duty foil. Wrap them up, then wrap another piece of foil around them, making sure they are sealed up. Place the foil packet in the oven, directly on the rack. Cook for 1 hour and 15 minutes.
Scrub the potatoes and place on a baking sheet and add to the oven after the artichokes have been in there for ½ an hour. Bake for 45 minutes.
Cut the zucchini in half lengthwise, then in half again lengthwise. Cut crosswise. Place on a baking sheet, drizzle with 1 tablespoon of olive oil and season with salt and pepper. Toss to coat and push them to one side of the baking sheet. Cut the mini peppers in half, remove the seeds and veins, place on the baking sheet with the zucchini; toss with another tablespoon of olive oil and more salt and pepper. Place the baking sheet with the zucchini and peppers in the oven after the artichokes have been in there for an hour. Bake for 15 minutes.
Bring a large pot of water to a boil and prepare a bowl with cold water and ice. Blanch the beans by placing in the boiling water for about 4 – 5 minutes. Remove with a slotted spoon or sieve and place directly into the ice bath. Do the same with the baby carrots, cooking for about 4 – 5 minutes.
Arrange the vegetables on platters, adding the cauliflower and tomatoes. It looks best when you group the vegetables together by type. Serve with the roasted garlic vegenaise sauce.