Pat tofu dry and cut into cubes.
Pat cubes dry to remove as much moisture as possible.
Season with salt and pepper. Combine garlic, chili, first measures of lemon juice and oil, rosemary and thyme in large mixing bowl. Soak tofu in marinade for approximately 20 seconds per side. Remove and set aside. Toss fennel, red and yellow peppers, onion and mushrooms in remaining marinade and set aside.