Butter a 3 quart casserole dish. Preheat oven to 350 degrees.
Whisk together the eggs and sugar. Add the bananas. Then add the cinnamon, vanilla, salt, cream, milk, and pecans.
Cut up the sticky buns or brioche and combine with the egg mixture.
Pour mix into buttered casserole. Bake for 1 hour and 15 minutes or until puffed and golden brown. Serve with dulce de leche.