Cut the block of tofu in half lengthwise, turn each half cut-side down on the board, and cut through the outer edge of the block of tofu 3 times to yield 4 tofu cutlets from each half.
On a large cookie sheet, place a clean, lint-free towel, or a layer of natural, unbleached paper towels, then all of the tofu cutlets in a single layer, followed by another layer of toweling, and finally place another large cookie sheet on top. Place something heavy on top of the cookie sheet and leave tofu to sit for 1 hour.
This process is known as pressing tofu
. It makes the texture much firmer.
Meanwhile, in a non-stick skillet, sauté peppers and onion in 2 T olive oil for 3 minutes to soften. Add the zucchini, yellow squash, 1 T of garlic, and sauté for an additional 3 minutes or until the vegetables are crisp tender.
Add the white wine, olives, half the fresh herbs, salt, and 1/4 t black pepper, reduce the heat to low, and simmer for 5 minutes.
While the vegetables are simmering, in a small bowl, combine the remaining olive oil, garlic, fresh herbs, black pepper, and other remaining ingredients, stir well to blend, and set aside.
Lightly oi a 9 x 13-inch baking dish. Spread the sautéed vegetable mixture in the bottom of the pan. Place the pressed tofu in rows over the top of the vegetables and pour the reserved red wine vinegar mixture over the tofu.
Cover the baking dish with a piece of aluminum foil and bake at 375°C for 30 minutes. Serve 2 pieces of tofu per person with a generous portion of the ratatouille vegetables spooned over the top.