Slice tofu into small bits for easy and quick browning. Heat large non-stick skillet or frying pan with the olive oil to medium heat. Brown tofu in oil, stirring every five minutes or so, until browned a little (about 15 minutes).
While this is browning, chop onions, carrots, and brocolli and spinach. Press the garlic. Add these ingredients and the spices to the tofu and cook 10 minutes (may be necessary to add about a 1/4 cup water). Pour in spaghetti sauce (or stewed tomatoes...sauce is my personal choice) and cook for five more minutes.
Serve alone, over pasta, or with vegan bread for dipping. This is a quick, easy meal in itself!