Ingredients
Method
Preheat your oven:
- Preheat your oven to 350°F (175°C). Grease a 9x13-inch baking dish with cooking spray or butter.
Cook the squash:
- In a large pot, bring salted water to a boil. Add the squash and onion (if using), and cook until tender, about 7–10 minutes. Drain well and lightly mash to release excess water.
Prepare the filling:
- In a large mixing bowl, stir together the cream of soup, mayonnaise, egg, cheddar cheese, salt, and pepper. Fold in the cooked squash mixture until fully combined.

Assemble the casserole:
- Pour the squash mixture into the prepared baking dish and spread evenly.
Add the topping:
- In a separate bowl, mix the crushed Ritz crackers with the melted butter. Sprinkle evenly over the casserole.

Bake:
- Bake uncovered for 35–40 minutes, or until the topping is golden and the casserole is bubbling around the edges.

Serve hot and enjoy the deliciousness!
- Enjoy!

