Per serving
This came from the Bisquick site, and it amazing!
Heat oven to 400°F.
Spray 8-inch square baking dish or 9-inch pie plate with cooking spray.
Sprinkle zucchini, tomato, onion and cheese in pie plate.
In medium bowl, stir remaining ingredients until blended.
Pour over vegetables and cheese.
Bake uncovered about 35 minutes or until knife inserted in center comes out clean.
Cool 5 minutes.
Cut into four portions.
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