Preheat the oven to 400°F.
Lightly grease an 8×8 casserole dish and arrange the squash evenly across the bottom.
Season with salt and pepper.
In a separate mixing bowl, combine the remaining ingredients until well incorporated.
Pour the mixture evenly over the squash.
Bake for 25-30 minutes, or until the top is golden brown and set.
Allow the casserole to cool slightly before serving.