Preheat the oven to 350-degrees.
Butter a 9 x 11 casserole dish.
In a large bowl, beat the eggs and cream until fluffy.
2 eggs, ¾ cup heavy cream
Add in the butter, sugar, vanilla extract, salt, and pepper until well mixed.
¾ cup sugar, ¼ cup butter, 1 teaspoon vanilla extract, 1 teaspoon salt, 1 teaspoon pepper
Fold in the mashed butternut squash. The mixture will be thin.
2 cups butternut squash
Pour the mixture into the prepared dish and bake 40-45 minutes uncovered until just set.
In a small bowl, prepare the topping and sprinkle over the squash mixture. Return to the oven and bake an additional 10-15 minutes until the topping is golden brown.
½ cup panko bread crumbs, ¼ cup brown sugar, ¼ cup pecans, ½ teaspoon pumpkin pie spice, 2 teaspoon butter