Top bread in 9x13 pan with cooked vegetables. Sprinkle with cheese and sliced fresh tomatoes. Pour egg mixture over top and bake for about 45 minutes or until knife inserted into center comes out clean.
Depending on how much liquid was cooked out of vegetables before baking, knife may be wet with clear juices when testing and still be done. Any liquid yellow or egg-like residue on knife would indicate further baking required.