Eh... I doubled the recipe, added oregano, jalapeno, Tabasco, 1 cup Parmesan, 2 cups mozzarella and baked for 1 hour. My biggest problem, which I should have foreseen, is that the onions were still raw. This is easily fixed by either using scallions or sauteing the onions before adding them. Fantastically simple & easy. A great way to use up zucchini. I'll make this again.

I have been making this recipe for years its so easy. Just love it and so does everyone else.I change up the recipe sometimes and I use Swiss cheese. You can even use less Bisquick and eggs if you choose. Its so good I could eat the whole dish but I don't. It makes a great lunch just add a salad.

I've made this for years but just use Parmesan... no cheddar and add red pepper flakes. Excellent.

I've made this several times. I don't dice the zucchini, I slice it very thin. I also use both green and yellow zucchini. I omit the cheddar, add shredded carrots and plenty of mushrooms. I decrease the amount of oil and increase the amount of grated cheese.

This is an old family favorite - from Grandma, mom, me and the whole family in all generations LOVE it. So many great ways to alter it and tailor to taste! My contribution? You can never add enough Zucchini! at least double it, I promise, you won't have gone wrong!! Enjoy

This is one of the family meals that really makes them all happy! No complaints, ever! I slice zucchini and onion super thin with the mandolin. Turns out great each time. Great for lunch the next day.

Love this recipe. I too, as many others have, have made adjustments- different cheeses, all cheddar, more cheese, yellow squash and zucchini. It freezes well - I cut it up in single servings and freeze separately and pull it out in the AM to bring to work for lunch.

This zucchini/Bisquick recipe is not only nutritious, but zucchinilicious. Great way to use your zucchini. Hey, even if you don't have zucchini on hand...go out and purchase. Sometimes, I use just Parmesan. It is fun to tweak, if you so desire.

I cut down on the oil to 1/4 cup and add mushrooms and shredded carrots to this recipe and it adds so much more to the dish.

This was a very good recipe! My variation would have been one small onion, 3 eggs is sufficient, and 1 cup mozzarella and 1/2 cup cheddar jack cheese. With the amount of zucchini and cheese makes it very moist. Bake time increased by 10 minutes more.

My family has been making this for years (decades)... but we add diced pepperoni and no cheddar cheese. A family favorite!

Very good just the way it is. No need to tweak the recipe. It's zucchini season and I like to find different ways to use them. I will definitely make this dish again.

Adding diced pepperoni and diced mozzarella does the trick!

I added goat cheese Parmesan cheese and cheddar as well as yellow pepper and a dash or 2 of Tabasco. I am not a spicy type so this was really flavorful for me. Soooo good. With a salad... a wonderful easy meal!!!

All you need to add in this recipe is more salt. It calls for a dash of salt. I added 1 teaspoon and it was perfect! also instead of salad oil I used Extra Virgin Olive Oil. I also added chopped garlic for more flavor.