This was exactly what I was looking for, simple, quick, and delicious! I added a couple tablespoons of water, and used eggplant instead of zucchini. Unfortunately I didn't have any mushrooms (but I can't wait to try this again with mushrooms). I used a little less butter and cheese than the recipe asked for, and sauteed the veggies instead of microwaving them. It was very tasty!
Excellent way to have quiche - I made it for my lunches this week and it warms up well. The zucchini and mushrooms really adds a freshness that is delightful! Thanks!