My grandmother's passed down recipe, this warm and comforting side dish is so tasty you'll want to make it all year round! A creamy texture with a nutty, deep flavor, this easy-to-make casserole is sure to please a crowd!
Preheat the oven to 350º. Grease the bottom and sides of a 13"x9" glass baking dish with vegetable oil or cooking spray.
With a hand grater or food processor, shred zucchini, squash and onion. Add to a large mixing bowl. To the bowl, add the shredded cheese, eggs, milk and oil. Stir to combine.
Once combined, add the corn muffin mix and your salt and pepper. Stir again to completely incorporate all ingredients. Pour into prepared baking dish and bake on middle rack of oven for 1 hour. Serve warm or room temperature, and enjoy!