Have oven heating to 350 degrees.
Beat 4 eggs to blend in a large mixing bowl. Add vegetable oil, Bisquick, along with onion, cheese, chopped parsley, and salt and pepper to taste.
Toss in the zuccini, mix well, and pack into a greased casserole dish and bake at 350 degrees for 40 minutes.
Pulled from a recipe by Elizabeth Coblentz, "The Amish Cook". She may be contacted at The Amish Cook, c/o Oasis Newsfeatures, P.O. Box 2144, Middletown, Ohio 45042.