Cook lasagna noodles (set aside). Cook bell peppers, onions, and zucchini together. Cook until soft, add black olives. Thaw spinach and add it also, crumble tofu add also coat mixture with spaghetti sauce. You may or may not need all the sauce - add only what your taste requires. Salt and pepper to your taste. Put some sauce in bottom of pan then add noodles layer noodles and mixture. Put some sauce on top of our lasagna so the noodles won't burn.
Cook for 45 minutes in a 400 degree oven.